Product Description
customized steel spur helical pinion tooth spline shaft gear shaft
Product Description:
Brief Description And Advantages:
1. Produce as drawings
2. Material will be requirements
3. Strictly quality control
4. OEM is acceptable
Company Information:
Our Feature:
(1)In-house capability: OEM service as per customers’ requests, with in-house tooling design & fabricating
(2)Professional engineering capability: On product design, optimization and performance analysis
(3)Manufacturing capability range: DIN 3960, ISO 1328, AGMA 2000, JIS 1702-1703, etc.
(4)Packing: pallets, or according to customer’s requirement
(5)Just-in-time delivery capability
Primary Competitive Advantages:
Manufacturer
Professional Engineering Capability
Stable Quality
Reasonable Price
Small Orders Accepted
Continuous Improvements
High Product Performance
Prompt Delivery
Professional Service
Q1: Are you a trade company or a factory?
A: We are a factory which has been specialized in hardware, fasteners, bolt, nut, screws, washer, threaded rod, anchors, motor accessories, auto and motorcycle accessories, stainless steel plate, etc for more than 30 years.
Q2: Can you provide a sample?
A: Yes, we can provide you with free samples, but not including courier fees.
Q3: What is your delivery time?
A: If we have stock, we can delivery within 2 days after receive the payment. And normally our production is in 20-30 days for 1 container products.
Q4: What is your terms of payment ?
A: Small order 100% in advance. Mostly we use 30% advance payment by T/T, 70% before shipment. Or we discuss the details.
Q5: Can I request to change the packaging and transportation form?
A: Yes, we can change the form of packaging and transportation according to your requirements, we will add the price differences incurred during this period to the unit price.
|
Shipping Cost:
Estimated freight per unit. |
To be negotiated |
|---|
| Material: | Carbon Steel |
|---|---|
| Load: | Drive Shaft |
| Stiffness & Flexibility: | Stiffness / Rigid Axle |
| Samples: |
US$ 0.01/Piece
1 Piece(Min.Order) | Order Sample |
|---|
How to Calculate Stiffness, Centering Force, Wear and Fatigue Failure of Spline Couplings
There are various types of spline couplings. These couplings have several important properties. These properties are: Stiffness, Involute splines, Misalignment, Wear and fatigue failure. To understand how these characteristics relate to spline couplings, read this article. It will give you the necessary knowledge to determine which type of coupling best suits your needs. Keeping in mind that spline couplings are usually spherical in shape, they are made of steel.
Involute splines
An effective side interference condition minimizes gear misalignment. When two splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by five mm. A linear lead variation, which results from multiple connections along the length of the spline contact, increases the effective clearance or interference by a given percentage. This type of misalignment is undesirable for coupling high-speed equipment.
Involute splines are often used in gearboxes. These splines transmit high torque, and are better able to distribute load among multiple teeth throughout the coupling circumference. The involute profile and lead errors are related to the spacing between spline teeth and keyways. For coupling applications, industry practices use splines with 25 to fifty-percent of spline teeth engaged. This load distribution is more uniform than that of conventional single-key couplings.
To determine the optimal tooth engagement for an involved spline coupling, Xiangzhen Xue and colleagues used a computer model to simulate the stress applied to the splines. The results from this study showed that a “permissible” Ruiz parameter should be used in coupling. By predicting the amount of wear and tear on a crowned spline, the researchers could accurately predict how much damage the components will sustain during the coupling process.
There are several ways to determine the optimal pressure angle for an involute spline. Involute splines are commonly measured using a pressure angle of 30 degrees. Similar to gears, involute splines are typically tested through a measurement over pins. This involves inserting specific-sized wires between gear teeth and measuring the distance between them. This method can tell whether the gear has a proper tooth profile.
The spline system shown in Figure 1 illustrates a vibration model. This simulation allows the user to understand how involute splines are used in coupling. The vibration model shows four concentrated mass blocks that represent the prime mover, the internal spline, and the load. It is important to note that the meshing deformation function represents the forces acting on these three components.
Stiffness of coupling
The calculation of stiffness of a spline coupling involves the measurement of its tooth engagement. In the following, we analyze the stiffness of a spline coupling with various types of teeth using two different methods. Direct inversion and blockwise inversion both reduce CPU time for stiffness calculation. However, they require evaluation submatrices. Here, we discuss the differences between these two methods.
The analytical model for spline couplings is derived in the second section. In the third section, the calculation process is explained in detail. We then validate this model against the FE method. Finally, we discuss the influence of stiffness nonlinearity on the rotor dynamics. Finally, we discuss the advantages and disadvantages of each method. We present a simple yet effective method for estimating the lateral stiffness of spline couplings.
The numerical calculation of the spline coupling is based on the semi-analytical spline load distribution model. This method involves refined contact grids and updating the compliance matrix at each iteration. Hence, it consumes significant computational time. Further, it is difficult to apply this method to the dynamic analysis of a rotor. This method has its own limitations and should be used only when the spline coupling is fully investigated.
The meshing force is the force generated by a misaligned spline coupling. It is related to the spline thickness and the transmitting torque of the rotor. The meshing force is also related to the dynamic vibration displacement. The result obtained from the meshing force analysis is given in Figures 7, 8, and 9.
The analysis presented in this paper aims to investigate the stiffness of spline couplings with a misaligned spline. Although the results of previous studies were accurate, some issues remained. For example, the misalignment of the spline may cause contact damages. The aim of this article is to investigate the problems associated with misaligned spline couplings and propose an analytical approach for estimating the contact pressure in a spline connection. We also compare our results to those obtained by pure numerical approaches.
Misalignment
To determine the centering force, the effective pressure angle must be known. Using the effective pressure angle, the centering force is calculated based on the maximum axial and radial loads and updated Dudley misalignment factors. The centering force is the maximum axial force that can be transmitted by friction. Several published misalignment factors are also included in the calculation. A new method is presented in this paper that considers the cam effect in the normal force.
In this new method, the stiffness along the spline joint can be integrated to obtain a global stiffness that is applicable to torsional vibration analysis. The stiffness of bearings can also be calculated at given levels of misalignment, allowing for accurate estimation of bearing dimensions. It is advisable to check the stiffness of bearings at all times to ensure that they are properly sized and aligned.
A misalignment in a spline coupling can result in wear or even failure. This is caused by an incorrectly aligned pitch profile. This problem is often overlooked, as the teeth are in contact throughout the involute profile. This causes the load to not be evenly distributed along the contact line. Consequently, it is important to consider the effect of misalignment on the contact force on the teeth of the spline coupling.
The centre of the male spline in Figure 2 is superposed on the female spline. The alignment meshing distances are also identical. Hence, the meshing force curves will change according to the dynamic vibration displacement. It is necessary to know the parameters of a spline coupling before implementing it. In this paper, the model for misalignment is presented for spline couplings and the related parameters.
Using a self-made spline coupling test rig, the effects of misalignment on a spline coupling are studied. In contrast to the typical spline coupling, misalignment in a spline coupling causes fretting wear at a specific position on the tooth surface. This is a leading cause of failure in these types of couplings.
Wear and fatigue failure
The failure of a spline coupling due to wear and fatigue is determined by the first occurrence of tooth wear and shaft misalignment. Standard design methods do not account for wear damage and assess the fatigue life with big approximations. Experimental investigations have been conducted to assess wear and fatigue damage in spline couplings. The tests were conducted on a dedicated test rig and special device connected to a standard fatigue machine. The working parameters such as torque, misalignment angle, and axial distance have been varied in order to measure fatigue damage. Over dimensioning has also been assessed.
During fatigue and wear, mechanical sliding takes place between the external and internal splines and results in catastrophic failure. The lack of literature on the wear and fatigue of spline couplings in aero-engines may be due to the lack of data on the coupling’s application. Wear and fatigue failure in splines depends on a number of factors, including the material pair, geometry, and lubrication conditions.
The analysis of spline couplings shows that over-dimensioning is common and leads to different damages in the system. Some of the major damages are wear, fretting, corrosion, and teeth fatigue. Noise problems have also been observed in industrial settings. However, it is difficult to evaluate the contact behavior of spline couplings, and numerical simulations are often hampered by the use of specific codes and the boundary element method.
The failure of a spline gear coupling was caused by fatigue, and the fracture initiated at the bottom corner radius of the keyway. The keyway and splines had been overloaded beyond their yield strength, and significant yielding was observed in the spline gear teeth. A fracture ring of non-standard alloy steel exhibited a sharp corner radius, which was a significant stress raiser.
Several components were studied to determine their life span. These components include the spline shaft, the sealing bolt, and the graphite ring. Each of these components has its own set of design parameters. However, there are similarities in the distributions of these components. Wear and fatigue failure of spline couplings can be attributed to a combination of the three factors. A failure mode is often defined as a non-linear distribution of stresses and strains.
editor by CX 2023-05-26
China wholesaler Customized Forging Steel Reducer Spline Shaft with Hot selling
Product Description
1.Product Description
This Gear shaft, Herringbone Gear Shaft, Bevel Gear, Eccentric Shaft mainly used on vessel engine, fan internal gear
2.1. Gear Shaft Processing
Gear Shaft drawing CHECK, Make Forging Mold, Forging Mold Quality Inspection Check, Machine Processing, Check Size\Hardness\Surface Finish and other technical parameters on drawing.
2.2. Herringbone Gear Shaft Package
Spray anti-rust oil on Herringbone Gear Shaft, Wrap waterproof cloth around Gear Shaft for reducer, Prepare package by shaft shape&weight to choose steel frame, steel support or wooden box etc.
2.3. OEM Customized Gear Shaft
We supply OEM SERVICE, customized herringbone gear shaft with big module, more than 1tons big weight, more than 3m length, 42CrMo/35CrMo or your specified required material gear shaft.
2.Product Technical info.
| Module | m | Range: 5~70 |
| Gear Teeth Number | z | OEM by drawing’s technical parameters |
| Teeth Height | H | OEM by drawing’s technical parameters |
| Teeth Thickness | S | OEM by drawing’s technical parameters |
| Tooth pitch | P | OEM by drawing’s technical parameters |
| Tooth addendum | Ha | OEM by drawing’s technical parameters |
| Tooth dedendum | Hf | OEM by drawing’s technical parameters |
| Working height | h’ | OEM by drawing’s technical parameters |
| Bottom clearance | C | OEM by drawing’s technical parameters |
| Pressure Angle | α | OEM by drawing’s technical parameters |
| Helix Angle, | OEM by drawing’s technical parameters | |
| Surface hardness | HRC | Range: HRC 50~HRC63(Quenching) |
| Hardness: | HB | Range: HB150~HB280; Hardening Tempering/ Hardened Tooth Surface |
| Surface finish | Range: Ra1.6~Ra3.2 | |
| Tooth surface roughness | Ra | Range: ≥0.4 |
| Gear Accuracy Grade | Grade Range: 5-6-7-8-9 (ISO 1328) | |
| Length | L | Range: 0.8m~10m |
| Weight | Kg | Range: Min. 100kg~Max. 80tons Single Piece |
| Gear Position | Internal/External Gear | |
| Toothed Portion Shape | Spur Gear/Bevel/Spiral/Helical/Straight | |
| Shaft shape | Herringbone Gear Shaft / Gear Shaft / Eccentric Shaft / Spur Gear / Girth Gear / Gear Wheel | |
| Material | Forging/ Casting |
Forging/ Casting 45/42CrMo/40Cr or OEM |
| Manufacturing Method | Cut Gear | |
| Gear Teeth Milling | √ | |
| Gear Teeth Grinding | √ | |
| Heat Treatment | Quenching /Carburizing | |
| Sand Blasting | Null | |
| Testing | UT\MT | |
| Trademark | TOTEM/OEM | |
| Application | Gearbox, Reducer, Petroleum,Cement,Mining,Metallurgy etc. Wind driven generator,vertical mill reducer,oil rig helical gear,petroleum slurry pump gear shaft |
|
| Transport Package | Export package (wooden box, steel frame etc.) | |
| Origin | China | |
| HS Code | 8483409000 |
Material Comparison List
| STEEL CODE GRADES COMPARISON | |||||
| CHINA/GB | ISO | ГΟСТ | ASTM | JIS | DIN |
| 45 | C45E4 | 45 | 1045 | S45C | CK45 |
| 40Cr | 41Cr4 | 40X | 5140 | SCr440 | 41Cr4 |
| 20CrMo | 18CrMo4 | 20ХМ | 4118 | SCM22 | 25CrMo4 |
| 42CrMo | 42CrMo4 | 38XM | 4140 | SCM440 | 42CrMo4 |
| 20CrMnTi | 18XГT | SMK22 | |||
| 20Cr2Ni4 | 20X2H4A | ||||
| 20CrNiMo | 20CrNiMo2 | 20XHM | 8720 | SNCM220 | 21NiCrMo2 |
| 40CrNiMoA | 40XH2MA/ 40XHMA |
4340 | SNCM439 | 40NiCrMo6/ 36NiCrMo4 |
|
| 20CrNi2Mo | 20NiCrMo7 | 20XH2MA | 4320 | SNCM420 | |
3.Totem Service
TOTEM Machinery focus on supplying GEAR SHAFT, ECCENTRIC SHAFT, HERRINGBONE GEAR, BEVEL GEAR, INTERNAL GEAR and other parts for transmission devices & equipments(large industrial reducers & drivers). Which were mainly used in the fields of port facilities, cement, mining, metallurgical industry etc. We invested in several machine processing factories,forging factories and casting factories,relies on these strong reliable and high-quality supplier network, to let our customers worry free.
TOTEM Philosophy: Quality-No.1, Integrity- No.1, Service- No.1
24hrs Salesman on-line, guarantee quick and positive feedback. Experienced and Professional Forwarder Guarantee Log. transportation.
4.About TOTEM
1. Workshop & Processing Strength
2. Testing Facilities
3. Customer Inspection & Shipping
5. Contact Us
ZheJiang CZPT Machinery Co.,Ltd
Facebook: ZheJiang Totem
| Material: | Alloy Steel |
|---|---|
| Load: | Drive Shaft |
| Stiffness & Flexibility: | Forging |
| Journal Diameter Dimensional Accuracy: | It5-It9 |
| Axis Shape: | Straight Shaft |
| Shaft Shape: | Customized |
| Customization: |
Available
| Customized Request |
|---|
Applications of Spline Couplings
A spline coupling is a highly effective means of connecting two or more components. These types of couplings are very efficient, as they combine linear motion with rotation, and their efficiency makes them a desirable choice in numerous applications. Read on to learn more about the main characteristics and applications of spline couplings. You will also be able to determine the predicted operation and wear. You can easily design your own couplings by following the steps outlined below.
Optimal design
The spline coupling plays an important role in transmitting torque. It consists of a hub and a shaft with splines that are in surface contact without relative motion. Because they are connected, their angular velocity is the same. The splines can be designed with any profile that minimizes friction. Because they are in contact with each other, the load is not evenly distributed, concentrating on a small area, which can deform the hub surface.
Optimal spline coupling design takes into account several factors, including weight, material characteristics, and performance requirements. In the aeronautics industry, weight is an important design factor. S.A.E. and ANSI tables do not account for weight when calculating the performance requirements of spline couplings. Another critical factor is space. Spline couplings may need to fit in tight spaces, or they may be subject to other configuration constraints.
Optimal design of spline couplers may be characterized by an odd number of teeth. However, this is not always the case. If the external spline’s outer diameter exceeds a certain threshold, the optimal spline coupling model may not be an optimal choice for this application. To optimize a spline coupling for a specific application, the user may need to consider the sizing method that is most appropriate for their application.
Once a design is generated, the next step is to test the resulting spline coupling. The system must check for any design constraints and validate that it can be produced using modern manufacturing techniques. The resulting spline coupling model is then exported to an optimisation tool for further analysis. The method enables a designer to easily manipulate the design of a spline coupling and reduce its weight.
The spline coupling model 20 includes the major structural features of a spline coupling. A product model software program 10 stores default values for each of the spline coupling’s specifications. The resulting spline model is then calculated in accordance with the algorithm used in the present invention. The software allows the designer to enter the spline coupling’s radii, thickness, and orientation.
Characteristics
An important aspect of aero-engine splines is the load distribution among the teeth. The researchers have performed experimental tests and have analyzed the effect of lubrication conditions on the coupling behavior. Then, they devised a theoretical model using a Ruiz parameter to simulate the actual working conditions of spline couplings. This model explains the wear damage caused by the spline couplings by considering the influence of friction, misalignment, and other conditions that are relevant to the splines’ performance.
In order to design a spline coupling, the user first inputs the design criteria for sizing load carrying sections, including the external spline 40 of the spline coupling model 30. Then, the user specifies torque margin performance requirement specifications, such as the yield limit, plastic buckling, and creep buckling. The software program then automatically calculates the size and configuration of the load carrying sections and the shaft. These specifications are then entered into the model software program 10 as specification values.
Various spline coupling configuration specifications are input on the GUI screen 80. The software program 10 then generates a spline coupling model by storing default values for the various specifications. The user then can manipulate the spline coupling model by modifying its various specifications. The final result will be a computer-aided design that enables designers to optimize spline couplings based on their performance and design specifications.
The spline coupling model software program continually evaluates the validity of spline coupling models for a particular application. For example, if a user enters a data value signal corresponding to a parameter signal, the software compares the value of the signal entered to the corresponding value in the knowledge base. If the values are outside the specifications, a warning message is displayed. Once this comparison is completed, the spline coupling model software program outputs a report with the results.
Various spline coupling design factors include weight, material properties, and performance requirements. Weight is one of the most important design factors, particularly in the aeronautics field. ANSI and S.A.E. tables do not consider these factors when calculating the load characteristics of spline couplings. Other design requirements may also restrict the configuration of a spline coupling.
Applications
Spline couplings are a type of mechanical joint that connects two rotating shafts. Its two parts engage teeth that transfer load. Although splines are commonly over-dimensioned, they are still prone to fatigue and static behavior. These properties also make them prone to wear and tear. Therefore, proper design and selection are vital to minimize wear and tear on splines. There are many applications of spline couplings.
A key design is based on the size of the shaft being joined. This allows for the proper spacing of the keys. A novel method of hobbing allows for the formation of tapered bases without interference, and the root of the keys is concentric with the axis. These features enable for high production rates. Various applications of spline couplings can be found in various industries. To learn more, read on.
FE based methodology can predict the wear rate of spline couplings by including the evolution of the coefficient of friction. This method can predict fretting wear from simple round-on-flat geometry, and has been calibrated with experimental data. The predicted wear rate is reasonable compared to the experimental data. Friction evolution in spline couplings depends on the spline geometry. It is also crucial to consider the lubrication condition of the splines.
Using a spline coupling reduces backlash and ensures proper alignment of mated components. The shaft’s splined tooth form transfers rotation from the splined shaft to the internal splined member, which may be a gear or other rotary device. A spline coupling’s root strength and torque requirements determine the type of spline coupling that should be used.
The spline root is usually flat and has a crown on one side. The crowned spline has a symmetrical crown at the centerline of the face-width of the spline. As the spline length decreases toward the ends, the teeth are becoming thinner. The tooth diameter is measured in pitch. This means that the male spline has a flat root and a crowned spline.
Predictability
Spindle couplings are used in rotating machinery to connect two shafts. They are composed of two parts with teeth that engage each other and transfer load. Spline couplings are commonly over-dimensioned and are prone to static and fatigue behavior. Wear phenomena are also a common problem with splines. To address these issues, it is essential to understand the behavior and predictability of these couplings.
Dynamic behavior of spline-rotor couplings is often unclear, particularly if the system is not integrated with the rotor. For example, when a misalignment is not present, the main response frequency is one X-rotating speed. As the misalignment increases, the system starts to vibrate in complex ways. Furthermore, as the shaft orbits depart from the origin, the magnitudes of all the frequencies increase. Thus, research results are useful in determining proper design and troubleshooting of rotor systems.
The model of misaligned spline couplings can be obtained by analyzing the stress-compression relationships between two spline pairs. The meshing force model of splines is a function of the system mass, transmitting torque, and dynamic vibration displacement. This model holds when the dynamic vibration displacement is small. Besides, the CZPT stepping integration method is stable and has high efficiency.
The slip distributions are a function of the state of lubrication, coefficient of friction, and loading cycles. The predicted wear depths are well within the range of measured values. These predictions are based on the slip distributions. The methodology predicts increased wear under lightly lubricated conditions, but not under added lubrication. The lubrication condition and coefficient of friction are the key factors determining the wear behavior of splines.
editor by CX 2023-05-25
China Standard Professional Long Spline Propeller Drive Shafts Stainless Steel Forged Shafts drive shaft components
Product Description
Product Description
Product Description
| Item | Shaft, axle |
| Application | Cranes, Railway way, mineral Machinery, hydraulic Machinery, Spare parts etc. |
| Design | Can be at the customer’ request, tailor-made, at customer’s design |
| Material | Stainless Steel or Carbon Steel, such as 45#, 65# SAE4140, SAE4150, SAE4160, 42CrMo, stainless steel 410, stainless steel 304, or other required steel |
| Size | Diameter 80mm to 2000mm. Length max.in 6000mm |
| Minimum order | 1Pcs |
Product Real Shot
Manufacturing Process
- Free forged or module forged
- Rough machining process, to remove the surface forged oxidized black leather.
- 100% Ultrasonic Test ASTMA388
- Heat Treatment according to request, Normalized, Quenched, Tempered….
- Hardness test
- Finishing Process to the dimensional state required by the drawing.
- 100% Magnetic Test ASTM E709 and 100% dimensional test
- Painting or oil protecting TECTYL 506 or similiar
- Packing with boxes
Data Needed for Quotation
– Your own drawing
– Your requirement on material and necessary dimensional data
– Ask for recommend
Company Profile
ZheJiang CZPT Machinery Co., Ltd., established in the year of 2012, is a professional supplier of material handling equipment, OEM machinery parts, various forging parts and casting parts.
Ebon’s products scope: cranes, hoists, magnets, grabs, hooks, wheels, drums, axles, lifting beams,bearing box, bearings, couplings,flanges etc. They are applied in wide range of field: Machinery, Mining, Hydro power Transportation, Construction…..
CZPT has 5 reliable manufacturing factories to make sure stable supply and fast delivery for your business.
Our products are also exported to USA, Britain, Japan, South Korea, Russia, Indonesia, Thailand, India, Vietnam, Canada, Argentina, Paraguay etc more than 50 countries.
CZPT team is loyal and committed to your success, and firmly believes that our products and services will increase the value and effectiveness of your business with following characters:
-Professional sales team, market promotion team and logistics team with more then 10 years experience .
-Loyal and Responsible Characters
-Efficient Work, Fast Response
-Responsible Quality Control Team
-Video the manufacturing process, the testing, and packing before delivery
1.Q: How about your delivery time?
A: Generally, it will take 7-30 days after receiving your advance payment. The specific delivery time depends on the items, transportation ways and the quantity of your order.
2.Q: Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings.
3.Q: Do you test all your goods before delivery?
A: Yes, we have 100% Ultrasonic test, Magnetic test or Liquid Penetration test before delivery
4.Q: How do you make our business long-term and good relationship?
A: (1) We keep good quality and competitive price to ensure our customers benefit ;
(2) We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
5.Q: I can’t see the goods or touch the goods, how can I deal with the risk involved?
A: Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.
| Processing Object: | Metal |
|---|---|
| Molding Style: | Forging |
| Molding Technics: | Pressure Casting |
| Application: | Machinery Parts |
| Material: | Steel |
| Heat Treatment: | Quenching |
| Customization: |
Available
| Customized Request |
|---|
Applications of Spline Couplings
A spline coupling is a highly effective means of connecting two or more components. These types of couplings are very efficient, as they combine linear motion with rotation, and their efficiency makes them a desirable choice in numerous applications. Read on to learn more about the main characteristics and applications of spline couplings. You will also be able to determine the predicted operation and wear. You can easily design your own couplings by following the steps outlined below.
Optimal design
The spline coupling plays an important role in transmitting torque. It consists of a hub and a shaft with splines that are in surface contact without relative motion. Because they are connected, their angular velocity is the same. The splines can be designed with any profile that minimizes friction. Because they are in contact with each other, the load is not evenly distributed, concentrating on a small area, which can deform the hub surface.
Optimal spline coupling design takes into account several factors, including weight, material characteristics, and performance requirements. In the aeronautics industry, weight is an important design factor. S.A.E. and ANSI tables do not account for weight when calculating the performance requirements of spline couplings. Another critical factor is space. Spline couplings may need to fit in tight spaces, or they may be subject to other configuration constraints.
Optimal design of spline couplers may be characterized by an odd number of teeth. However, this is not always the case. If the external spline’s outer diameter exceeds a certain threshold, the optimal spline coupling model may not be an optimal choice for this application. To optimize a spline coupling for a specific application, the user may need to consider the sizing method that is most appropriate for their application.
Once a design is generated, the next step is to test the resulting spline coupling. The system must check for any design constraints and validate that it can be produced using modern manufacturing techniques. The resulting spline coupling model is then exported to an optimisation tool for further analysis. The method enables a designer to easily manipulate the design of a spline coupling and reduce its weight.
The spline coupling model 20 includes the major structural features of a spline coupling. A product model software program 10 stores default values for each of the spline coupling’s specifications. The resulting spline model is then calculated in accordance with the algorithm used in the present invention. The software allows the designer to enter the spline coupling’s radii, thickness, and orientation.
Characteristics
An important aspect of aero-engine splines is the load distribution among the teeth. The researchers have performed experimental tests and have analyzed the effect of lubrication conditions on the coupling behavior. Then, they devised a theoretical model using a Ruiz parameter to simulate the actual working conditions of spline couplings. This model explains the wear damage caused by the spline couplings by considering the influence of friction, misalignment, and other conditions that are relevant to the splines’ performance.
In order to design a spline coupling, the user first inputs the design criteria for sizing load carrying sections, including the external spline 40 of the spline coupling model 30. Then, the user specifies torque margin performance requirement specifications, such as the yield limit, plastic buckling, and creep buckling. The software program then automatically calculates the size and configuration of the load carrying sections and the shaft. These specifications are then entered into the model software program 10 as specification values.
Various spline coupling configuration specifications are input on the GUI screen 80. The software program 10 then generates a spline coupling model by storing default values for the various specifications. The user then can manipulate the spline coupling model by modifying its various specifications. The final result will be a computer-aided design that enables designers to optimize spline couplings based on their performance and design specifications.
The spline coupling model software program continually evaluates the validity of spline coupling models for a particular application. For example, if a user enters a data value signal corresponding to a parameter signal, the software compares the value of the signal entered to the corresponding value in the knowledge base. If the values are outside the specifications, a warning message is displayed. Once this comparison is completed, the spline coupling model software program outputs a report with the results.
Various spline coupling design factors include weight, material properties, and performance requirements. Weight is one of the most important design factors, particularly in the aeronautics field. ANSI and S.A.E. tables do not consider these factors when calculating the load characteristics of spline couplings. Other design requirements may also restrict the configuration of a spline coupling.
Applications
Spline couplings are a type of mechanical joint that connects two rotating shafts. Its two parts engage teeth that transfer load. Although splines are commonly over-dimensioned, they are still prone to fatigue and static behavior. These properties also make them prone to wear and tear. Therefore, proper design and selection are vital to minimize wear and tear on splines. There are many applications of spline couplings.
A key design is based on the size of the shaft being joined. This allows for the proper spacing of the keys. A novel method of hobbing allows for the formation of tapered bases without interference, and the root of the keys is concentric with the axis. These features enable for high production rates. Various applications of spline couplings can be found in various industries. To learn more, read on.
FE based methodology can predict the wear rate of spline couplings by including the evolution of the coefficient of friction. This method can predict fretting wear from simple round-on-flat geometry, and has been calibrated with experimental data. The predicted wear rate is reasonable compared to the experimental data. Friction evolution in spline couplings depends on the spline geometry. It is also crucial to consider the lubrication condition of the splines.
Using a spline coupling reduces backlash and ensures proper alignment of mated components. The shaft’s splined tooth form transfers rotation from the splined shaft to the internal splined member, which may be a gear or other rotary device. A spline coupling’s root strength and torque requirements determine the type of spline coupling that should be used.
The spline root is usually flat and has a crown on one side. The crowned spline has a symmetrical crown at the centerline of the face-width of the spline. As the spline length decreases toward the ends, the teeth are becoming thinner. The tooth diameter is measured in pitch. This means that the male spline has a flat root and a crowned spline.
Predictability
Spindle couplings are used in rotating machinery to connect two shafts. They are composed of two parts with teeth that engage each other and transfer load. Spline couplings are commonly over-dimensioned and are prone to static and fatigue behavior. Wear phenomena are also a common problem with splines. To address these issues, it is essential to understand the behavior and predictability of these couplings.
Dynamic behavior of spline-rotor couplings is often unclear, particularly if the system is not integrated with the rotor. For example, when a misalignment is not present, the main response frequency is one X-rotating speed. As the misalignment increases, the system starts to vibrate in complex ways. Furthermore, as the shaft orbits depart from the origin, the magnitudes of all the frequencies increase. Thus, research results are useful in determining proper design and troubleshooting of rotor systems.
The model of misaligned spline couplings can be obtained by analyzing the stress-compression relationships between two spline pairs. The meshing force model of splines is a function of the system mass, transmitting torque, and dynamic vibration displacement. This model holds when the dynamic vibration displacement is small. Besides, the CZPT stepping integration method is stable and has high efficiency.
The slip distributions are a function of the state of lubrication, coefficient of friction, and loading cycles. The predicted wear depths are well within the range of measured values. These predictions are based on the slip distributions. The methodology predicts increased wear under lightly lubricated conditions, but not under added lubrication. The lubrication condition and coefficient of friction are the key factors determining the wear behavior of splines.
editor by CX 2023-05-24
China wholesaler Spline Shaft for Tools Motor Customized Lathing Milling Knurling High Precision in Steel with Black Treatment Factory Price with Hot selling
Product Description
Product description
Linear shaft features
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Items |
Linear shaft |
Flexible shaft |
Hollow shaft |
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Material |
CK45, SUJ2 |
CK45 |
SUJ2 |
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Heat treatment |
Induction hardened |
Not hardened |
Induction hardened |
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Surface hardness |
HRC58±2 |
HRC15±3 |
HRC60±2 |
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Surface treated |
Hard chrome plated |
Hard chrome plated |
Hard chrome plated |
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Precision |
h7, g6, h6 |
h7, g6 |
h7, g6, h6 |
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Roundness |
Max3.0µm |
Max3.0µm |
Max3.0µm |
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Straightness |
Max5.0µm |
Max5.0µm |
Max5.0µm |
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Chrome thickness |
20-30µm |
30µm |
30µm |
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Roughness |
Max1.5µm |
Max1.5µm |
Max1.5µm |
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Process machinized |
Threading, reduced shaft dia,coaxial holes drilled and tapped, flats-single or multiple, key way, snap ring grooves, radial holes drilled and tapped, chamfering |
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Linear shaft description
YYZW offers linear shafting in a variety of different options to meet a wide range of customer needs. Available in hardened steel, CK45 material steel, SUJ2 material steel, hollow steel , inch and metric, Simplicity Shafting maintains the ideal surface finish for linear plain bearings and ball bearings.
· Solid round shafting is available in inch sizes from 3/16″ thru 4″ and metric sizes from 3 mm thru 80 mm
· Machining available CZPT request
High Reliability
YYZW linear shaft has very straight quality control standards covering every production process. With proper lubrication and use, trouble-free operation for an extended period of time is possible.
Smooth Operation
The high efficiency of linear shaft is vastly superior to conventional shaft. The torque required is less than 30%. Linear motion can be easily changed from rotary motion.
High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience,have resulted in the most durable linear shaft manufactured.
Induction linear shaft, Flexible linear shaft,
linear bearings shaft, hollow linear shaft,
hardened linear shaft, chromed linear shaft
Application
For delicate application in industrial application, machine tool and automation application.
Linear Shafts – Technical Properties.
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Test linear shaft surface roughness the max roughness is Ra0.4um |
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Straight the linear shaft straightness: We control the traighness 0.05mm of linear shaft 300mm |
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Test hardness: S45C materail induction linear shaft, the hardness is HRC55-58 GCr15 (SUJ2) materail induction linear shaft, the hardness is HRC58-63 If flexible shaft, the hardness is based on the shaft material itself |
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| Test the linear shaft dia precision, as usually, h7 is the normal tolerance in our stock, But we can offer g6, h6 precision too. if any special tolerance, we are able to customize them for you. |
We can machinize all kinds of machining,
Related products
Related products
There are many kinds of hardwareproducts we can offer, If you are interested in them, please click the picture and see the details.
Production Flow
Packaging & Shipping
Packaging and shipping
PP bag for each linear shaft, Standard exported carton outside for small order shipping by international express, such as DHL, TNT, UPS
Wooden box outside for big quantity or very long linear shaft by sea, by air
| Material: | Carbon Steel |
|---|---|
| Load: | Central Spindle |
| Stiffness & Flexibility: | Stiffness / Rigid Axle |
| Journal Diameter Dimensional Accuracy: | IT01-IT5 |
| Axis Shape: | Straight Shaft |
| Shaft Shape: | Real Axis |
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Types of Splines
There are four types of splines: Involute, Parallel key, helical, and ball. Learn about their characteristics. And, if you’re not sure what they are, you can always request a quotation. These splines are commonly used for building special machinery, repair jobs, and other applications. The CZPT Manufacturing Company manufactures these shafts. It is a specialty manufacturer and we welcome your business.
Involute splines
The involute spline provides a more rigid and durable structure, and is available in a variety of diameters and spline counts. Generally, steel, carbon steel, or titanium are used as raw materials. Other materials, such as carbon fiber, may be suitable. However, titanium can be difficult to produce, so some manufacturers make splines using other constituents.
When splines are used in shafts, they prevent parts from separating during operation. These features make them an ideal choice for securing mechanical assemblies. Splines with inward-curving grooves do not have sharp corners and are therefore less likely to break or separate while they are in operation. These properties help them to withstand high-speed operations, such as braking, accelerating, and reversing.
A male spline is fitted with an externally-oriented face, and a female spline is inserted through the center. The teeth of the male spline typically have chamfered tips to provide clearance with the transition area. The radii and width of the teeth of a male spline are typically larger than those of a female spline. These specifications are specified in ANSI or DIN design manuals.
The effective tooth thickness of a spline depends on the involute profile error and the lead error. Also, the spacing of the spline teeth and keyways can affect the effective tooth thickness. Involute splines in a splined shaft are designed so that at least 25 percent of the spline teeth engage during coupling, which results in a uniform distribution of load and wear on the spline.
Parallel key splines
A parallel splined shaft has a helix of equal-sized grooves around its circumference. These grooves are generally parallel or involute. Splines minimize stress concentrations in stationary joints and allow linear and rotary motion. Splines may be cut or cold-rolled. Cold-rolled splines have more strength than cut spines and are often used in applications that require high strength, accuracy, and a smooth surface.
A parallel key splined shaft features grooves and keys that are parallel to the axis of the shaft. This design is best suited for applications where load bearing is a primary concern and a smooth motion is needed. A parallel key splined shaft can be made from alloy steels, which are iron-based alloys that may also contain chromium, nickel, molybdenum, copper, or other alloying materials.
A splined shaft can be used to transmit torque and provide anti-rotation when operating as a linear guide. These shafts have square profiles that match up with grooves in a mating piece and transmit torque and rotation. They can also be easily changed in length, and are commonly used in aerospace. Its reliability and fatigue life make it an excellent choice for many applications.
The main difference between a parallel key splined shaft and a keyed shaft is that the former offers more flexibility. They lack slots, which reduce torque-transmitting capacity. Splines offer equal load distribution along the gear teeth, which translates into a longer fatigue life for the shaft. In agricultural applications, shaft life is essential. Agricultural equipment, for example, requires the ability to function at high speeds for extended periods of time.
Involute helical splines
Involute splines are a common design for splined shafts. They are the most commonly used type of splined shaft and feature equal spacing among their teeth. The teeth of this design are also shorter than those of the parallel spline shaft, reducing stress concentration. These splines can be used to transmit power to floating or permanently fixed gears, and reduce stress concentrations in the stationary joint. Involute splines are the most common type of splined shaft, and are widely used for a variety of applications in automotive, machine tools, and more.
Involute helical spline shafts are ideal for applications involving axial motion and rotation. They allow for face coupling engagement and disengagement. This design also allows for a larger diameter than a parallel spline shaft. The result is a highly efficient gearbox. Besides being durable, splines can also be used for other applications involving torque and energy transfer.
A new statistical model can be used to determine the number of teeth that engage for a given load. These splines are characterized by a tight fit at the major diameters, thereby transferring concentricity from the shaft to the female spline. A male spline has chamfered tips for clearance with the transition area. ANSI and DIN design manuals specify the different classes of fit.
The design of involute helical splines is similar to that of gears, and their ridges or teeth are matched with the corresponding grooves in a mating piece. It enables torque and rotation to be transferred to a mate piece while maintaining alignment of the two components. Different types of splines are used in different applications. Different splines can have different levels of tooth height.
Involute ball splines
When splines are used, they allow the shaft and hub to engage evenly over the shaft’s entire circumference. Because the teeth are evenly spaced, the load that they can transfer is uniform and their position is always the same regardless of shaft length. Whether the shaft is used to transmit torque or to transmit power, splines are a great choice. They provide maximum strength and allow for linear or rotary motion.
There are three basic types of splines: helical, crown, and ball. Crown splines feature equally spaced grooves. Crown splines feature involute sides and parallel sides. Helical splines use involute teeth and are often used in small diameter shafts. Ball splines contain a ball bearing inside the splined shaft to facilitate rotary motion and minimize stress concentration in stationary joints.
The two types of splines are classified under the ANSI classes of fit. Fillet root splines have teeth that mesh along the longitudinal axis of rotation. Flat root splines have similar teeth, but are intended to optimize strength for short-term use. Both types of splines are important for ensuring the shaft aligns properly and is not misaligned.
The friction coefficient of the hub is a complex process. When the hub is off-center, the center moves in predictable but irregular motion. Moreover, when the shaft is centered, the center may oscillate between being centered and being off-center. To compensate for this, the torque must be adequate to keep the shaft in its axis during all rotation angles. While straight-sided splines provide similar centering, they have lower misalignment load factors.
Keyed shafts
Essentially, splined shafts have teeth or ridges that fit together to transfer torque. Because splines are not as tall as involute gears, they offer uniform torque transfer. Additionally, they provide the opportunity for torque and rotational changes and improve wear resistance. In addition to their durability, splined shafts are popular in the aerospace industry and provide increased reliability and fatigue life.
Keyed shafts are available in different materials, lengths, and diameters. When used in high-power drive applications, they offer higher torque and rotational speeds. The higher torque they produce helps them deliver power to the gearbox. However, they are not as durable as splined shafts, which is why the latter is usually preferred in these applications. And while they’re more expensive, they’re equally effective when it comes to torque delivery.
Parallel keyed shafts have separate profiles and ridges and are used in applications requiring accuracy and precision. Keyed shafts with rolled splines are 35% stronger than cut splines and are used where precision is essential. These splines also have a smooth finish, which can make them a good choice for precision applications. They also work well with gears and other mechanical systems that require accurate torque transfer.
Carbon steel is another material used for splined shafts. Carbon steel is known for its malleability, and its shallow carbon content helps create reliable motion. However, if you’re looking for something more durable, consider ferrous steel. This type contains metals such as nickel, chromium, and molybdenum. And it’s important to remember that carbon steel is not the only material to consider.
editor by CX 2023-05-17
China best Factory OEM Casting Forging Steel Driving/Worm/Pinion/Truck/Roll/Transmission/Crank/Axle/Roller/Screw/Spline Gear Shaft custom drive shaft shop
Product Description
Factory OEM Casting Forging Steel Driving/Worm/Pinion/Truck/Roll/Transmission/Crank/Axle/Roller/Screw/Spline Gear Shaft
Product Disply
| Process | Hot forging, die forging and Free forging |
| Material | Carbon steel: 1571,1571,1035,1045,1055,Q235,Q345 etc., Alloy steel: 40Cr, 20CrMnTi, 20CrNiMo,35CrMn,42CrMo4 etc., Stainless steel, SS304,SS316 etc. Aluminum |
| Standard | ISO, DIN, ASTM, BS ect. |
| Weight | 5kg – 5000kg |
| Applicable Machining Process | CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/ Tapping/ Broaching/Reaming etc. |
| Machining Tolerance | 0.02mm-0.1mm |
| Machined Surface Quality | Ra 0.8-Ra3.2 according to customer requirement |
| Applicable Heat Treatment | Normalization , quenching and tempering, Case Hardening, Nitriding, Carbon Nitriding, |
| Applicable Finish Surface Treatment | Shot/sand blast, polishing, Surface passivation, Powder coating, E- Coating, Chromate Plating, zinc-plate, Dacromat, Painting, |
| Testing equipment | Supersonic inspection machine, Supersonic flaw detecting machine , physics and chemical analysis. |
| Packing | Wooden cases or according to customers’ needs |
| MOQ of mass production | 10 pieces |
Q: What do I need for offering a quote ?
A: Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment and other technical requirement etc.) ,quantity, application or samples. Then we will quote the best price within 24h.
Q: What is your MOQ?
A: MOQ depends on our client’s needs, besides,we welcome trial order before mass-production.
Q: What is the production cycle?
A: It varies a lot depending on product dimension,technical requirements and quantity. We always try to meet customers’ requirement by adjusting our workshop schedule.
Q: What kind of payment terms do you accept?
A.: T/T, L/C, Escrow, Paypal, western union, etc.
Q: Is it possible to know how is my product going on without visiting your company?
A: We will offer a detailed products schedule and send weekly reports with digital pictures and videos which show the machining progress.
| Material: | Alloy Steel |
|---|---|
| Load: | Drive Shaft |
| Stiffness & Flexibility: | Flexible Shaft |
| Journal Diameter Dimensional Accuracy: | IT01-IT5 |
| Axis Shape: | Straight Shaft |
| Shaft Shape: | Real Axis |
| Customization: |
Available
| Customized Request |
|---|
What Are the Advantages of a Splined Shaft?
If you are looking for the right splined shaft for your machine, you should know a few important things. First, what type of material should be used? Stainless steel is usually the most appropriate choice, because of its ability to offer low noise and fatigue failure. Secondly, it can be machined using a slotting or shaping machine. Lastly, it will ensure smooth motion. So, what are the advantages of a splined shaft?
Stainless steel is the best material for splined shafts
When choosing a splined shaft, you should consider its hardness, quality, and finish. Stainless steel has superior corrosion and wear resistance. Carbon steel is another good material for splined shafts. Carbon steel has a shallow carbon content (about 1.7%), which makes it more malleable and helps ensure smooth motion. But if you’re not willing to spend the money on stainless steel, consider other options.
There are two main types of splines: parallel splines and crowned splines. Involute splines have parallel grooves and allow linear and rotary motion. Helical splines have involute teeth and are oriented at an angle. This type allows for many teeth on the shaft and minimizes the stress concentration in the stationary joint.
Large evenly spaced splines are widely used in hydraulic systems, drivetrains, and machine tools. They are typically made from carbon steel (CR10) and stainless steel (AISI 304). This material is durable and meets the requirements of ISO 14-B, formerly DIN 5463-B. Splined shafts are typically made of stainless steel or C45 steel, though there are many other materials available.
Stainless steel is the best material for a splined shaft. This metal is also incredibly affordable. In most cases, stainless steel is the best choice for these shafts because it offers the best corrosion resistance. There are many different types of splined shafts, and each one is suited for a particular application. There are also many different types of stainless steel, so choose stainless steel if you want the best quality.
For those looking for high-quality splined shafts, CZPT Spline Shafts offer many benefits. They can reduce costs, improve positional accuracy, and reduce friction. With the CZPT TFE coating, splined shafts can reduce energy and heat buildup, and extend the life of your products. And, they’re easy to install – all you need to do is install them.
They provide low noise, low wear and fatigue failure
The splines in a splined shaft are composed of two main parts: the spline root fillet and the spline relief. The spline root fillet is the most critical part, because fatigue failure starts there and propagates to the relief. The spline relief is more susceptible to fatigue failure because of its involute tooth shape, which offers a lower stress to the shaft and has a smaller area of contact.
The fatigue life of splined shafts is determined by measuring the S-N curve. This is also known as the Wohler curve, and it is the relationship between stress amplitude and number of cycles. It depends on the material, geometry and way of loading. It can be obtained from a physical test on a uniform material specimen under a constant amplitude load. Approximations for low-alloy steel parts can be made using a lower-alloy steel material.
Splined shafts provide low noise, minimal wear and fatigue failure. However, some mechanical transmission elements need to be removed from the shaft during assembly and manufacturing processes. The shafts must still be capable of relative axial movement for functional purposes. As such, good spline joints are essential to high-quality torque transmission, minimal backlash, and low noise. The major failure modes of spline shafts include fretting corrosion, tooth breakage, and fatigue failure.
The outer disc carrier spline is susceptible to tensile stress and fatigue failure. High customer demands for low noise and low wear and fatigue failure makes splined shafts an excellent choice. A fractured spline gear coupling was received for analysis. It was installed near the top of a filter shaft and inserted into the gearbox motor. The service history was unknown. The fractured spline gear coupling had longitudinally cracked and arrested at the termination of the spline gear teeth. The spline gear teeth also exhibited wear and deformation.
A new spline coupling method detects fault propagation in hollow cylindrical splined shafts. A spline coupling is fabricated using an AE method with the spline section unrolled into a metal plate of the same thickness as the cylinder wall. In addition, the spline coupling is misaligned, which puts significant concentration on the spline teeth. This further accelerates the rate of fretting fatigue and wear.
A spline joint should be lubricated after 25 hours of operation. Frequent lubrication can increase maintenance costs and cause downtime. Moreover, the lubricant may retain abrasive particles at the interfaces. In some cases, lubricants can even cause misalignment, leading to premature failure. So, the lubrication of a spline coupling is vital in ensuring proper functioning of the shaft.
The design of a spline coupling can be optimized to enhance its wear resistance and reliability. Surface treatments, loads, and rotation affect the friction properties of a spline coupling. In addition, a finite element method was developed to predict wear of a floating spline coupling. This method is feasible and provides a reliable basis for predicting the wear and fatigue life of a spline coupling.
They can be machined using a slotting or shaping machine
Machines can be used to shape splined shafts in a variety of industries. They are useful in many applications, including gearboxes, braking systems, and axles. A slotted shaft can be manipulated in several ways, including hobbling, broaching, and slotting. In addition to shaping, splines are also useful in reducing bar diameter.
When using a slotting or shaping machine, the workpiece is held against a pedestal that has a uniform thickness. The machine is equipped with a stand column and limiting column (Figure 1), each positioned perpendicular to the upper surface of the pedestal. The limiting column axis is located on the same line as the stand column. During the slotting or shaping process, the tool is fed in and out until the desired space is achieved.
One process involves cutting splines into a shaft. Straddle milling, spline shaping, and spline cutting are two common processes used to create splined shafts. Straddle milling involves a fixed indexing fixture that holds the shaft steady, while rotating milling cutters cut the groove in the length of the shaft. Several passes are required to ensure uniformity throughout the spline.
Splines are a type of gear. The ridges or teeth on the drive shaft mesh with grooves in the mating piece. A splined shaft allows the transmission of torque to a mate piece while maximizing the power transfer. Splines are used in heavy vehicles, construction, agriculture, and massive earthmoving machinery. Splines are used in virtually every type of rotary motion, from axles to transmission systems. They also offer better fatigue life and reliability.
Slotting or shaping machines can also be used to shape splined shafts. Slotting machines are often used to machine splined shafts, because it is easier to make them with these machines. Using a slotting or shaping machine can result in splined shafts of different sizes. It is important to follow a set of spline standards to ensure your parts are manufactured to the highest standards.
A milling machine is another option for producing splined shafts. A spline shaft can be set up between two centers in an indexing fixture. Two side milling cutters are mounted on an arbor and a spacer and shims are inserted between them. The arbor and cutters are then mounted to a milling machine spindle. To make sure the cutters center themselves over the splined shaft, an adjustment must be made to the spindle of the machine.
The machining process is very different for internal and external splines. External splines can be broached, shaped, milled, or hobbed, while internal splines cannot. These machines use hard alloy, but they are not as good for internal splines. A machine with a slotting mechanism is necessary for these operations.
editor by CX 2023-05-05
China Custom CNC Machinery Custom Pinion Shaft Drive Main Shaft OEM Forging Steel Transmission Large Spline Shaft drive shaft assembly parts
Product Description
CNC Precision Parts & OEM Parts Business Unit, 1 of our 3 most important business segment.
At the beginning, CNC BU was established for our own automation line spare parts demand, with our own CNC BU, our automation line can have fast and good non-standard spare parts supply, with a very good cost control.
During the last 10+ years, our CNC BU not only fulfilled our own demand, but also successfully supplied millions of non-standard spare parts according to our client’s demand.
Now with a 10+ years experienced team, highly equipped production workshop and test lab, our CNC BU grows to be a full solution precision spares supplier, we are familiar with German DIN standard, US ASTM standard, Japanese JIS standard, we can produce precision with um level in a constant quality base.
We can supply for you:
1. All kinds of Machining: Tuning, Milling, Grinding, Gear toothing, Wire cutting, Profile, Threads, and so on.
2. All kinds of Metal Materials: Carbon Steel (e.g., C45,42CrMo,16MnCr5), Stainless Steel(e.g., 303, 304, 316), Aluminum Alloy(e.g., AlCuMg2, AlSi10Mg, AlSi8Cu3, AlSi12, AlMg9, ADC12, A360, A380), Brass/Copper(e.g., ZCuZn16Si4, CuZn10, CuSn4, CuNi18Sn20), and so on.
3. All kinds of shape: Hollow Shaft, Profile Shaft, Housing, Flange, and so on.
4. All kinds of heat-treatments
5. All kinds of Coating
For more information, welcome to contact us
| Certification: | ISO |
|---|---|
| Color: | Customized |
| Customized: | Customized |
| Standard: | International |
| Type: | Transmission |
| Material: | Stainless Steel |
| Customization: |
Available
| Customized Request |
|---|
Analytical Approaches to Estimating Contact Pressures in Spline Couplings
A spline coupling is a type of mechanical connection between two rotating shafts. It consists of two parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
Modeling a spline coupling
Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify one specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the two spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the two splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on one spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.
Creating a spline coupling model 20
The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
Analysing a spline coupling model 20
An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to four different performance requirement specifications for each spline.
The results of the analysis show that there are two phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
Misalignment of a spline coupling
A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered two levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.
editor by CX 2023-04-28
China high quality OEM CNC Machinery Pinion Shaft Drive Main Shaft OEM Forging Steel Transmission Spline Shaft differential drive shaft
Product Description
OEM CNC Machinery Pinion Shaft Drive Main Shaft OEM Forging Steel Transmission Spline Shaft
We have the completed machining equipment,including horizontal lathe,vertical lathe,CNC boring and milling machine,CNC boring machine,deep hole drilling and boring machine, gear hobbing machine,gear teeth grinding machine,grinding machine,etc.
Strictly quality inspection system can produce high quality productsFor each order,we can provide report for material chemical components testing,UT testing,hardness,mechanical property testing(impact testing,yield strength testing,tensile strength testing),size inspection,etc.
Product Description
| Item | Shaft |
| Application | Cranes, Railway way, mineral Machinery, hydraulic Machinery, Spare parts etc. |
| Design | Can be at the customer’ request, tailor-made, at customer’s design |
| Material | Stainless Steel, Carbon Steel or Alloy Steel, such as 45#, 65# SAE4140, SAE4150, SAE4160, 42CrMo, stainless steel 410, stainless steel 304, or other required steel |
| Size | Diameter 10mm to 1000mm. Length max.in 6000mm |
Our company advantage:
1. Advanced inspection equipment for rigorous quality and control and precise specification.
2. We are a direct manufacturer, have lots of experience for packing machine parts and medical parts.
3. Customizing inspection report, providing the material certification.
4. All sorts of drawing formats are available. For example: PRO/E, solid works, Ci-matron, Auto CAD and so on.
5. Young manage team with efficient productivity, quick response and modern business concept.
Manufacturing Process
*Free forged or module forged
*Rough machining process, to remove the surface forged oxidized black leather.
*100% Ultrasonic Test ASTMA388
*Heat Treatment according to request, Normalized, Quenched, Tempered….
*Hardness test
*Finishing Process to the dimensional state required by the drawing.
*100% Magnetic Test ASTM E709 and 100% dimensional test
*Painting or oil protecting
*Packing with boxes
| Advantages | »Reliable Forging/CNC Machining service »Good machining quality »Reasonable Pricing provided »Competitive shipping cost service »MOQ 1PCS and small quantity order accepted »Professional engineering service when any modification required »Any turnkey assembly or customized package requirements, we’ll meet your demands! |
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| RFQ | Customer Inquiry →Engineering Communication →Cost Analysis →Sales Analysis → Quote to Customer » 1-3 Work Days Only » Submit RFQ with complete commercial terms |
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| Sample Making | Sample Order → Engineering Review → Sample Plan to Customer → Sample Status Tracking → Submit Samples with Doc. » Tooling L/T: 2-4 weeks, Sample L/T: 1 week » Continuous Sample Status Tracking » Complete Documents for sample approval |
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| Order Management | CRM System → Open Order Confirm → Logistic Arrangement. » Production L/T: 4-8 weeks » Weekly Open Order Confirm » Preferred 3PL Service to Customers |
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| Quality Control | Certificates: RoHS, ISO9001:2008, SGS. IQC → IPQC → OQC/FQC → Quality Complain Feedback → Audit & Training. » Plant Audit and Qualified by world famous company » Strict Quality Management Procedure with Traceability |
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| Application | »Aerospace »Marine »Motorbike »Automotive »PhotoGear »EDC Tools » lighting fittings »Medical equipment »Telecommunication »Electrical & Electronics »Fire detection system, etc. |
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In order to ensure the quality of the orders,our independent QC members to carry out strict inspection at each
stage:
*Raw Material Quality Control: Chemical Composition Analysis, Mechanical Performance Test
*Production Process Quality Control: Full-size inspection for the 1st part, Critical size process inspection, SPC process monitoring
*Lab ability: CMM, OGP, XRF, Roughness meter, Profiler, Automatic optical inspector
*Quality system: ISO9001
FAQ:
1) How can I place order?
A: You can contact us by email about your order details, or place order on line.
2) How can I pay you?
A: After you confirm our PI. we will request you to arrange payment by T/T.
3) What’s the order procedure?
A: First we discuss order details, production details by email or TM. Then we issue you an PI for your confirmation. You will be requested to do pre-paid full payment or 30% deposit before we go into production. After we get the deposit, we start to process the order. We usually need 4-8 weeks if we don’t have the items in stock. Before production has been finished, we will contact you for shipment details, start to prepare the shipment for you, and the balance payment should be settled before delivery.
4) How do you take care when your clients received defective products?
A: replacement. If there are some defective items, we usually credit to our customer or replace them in next shipment.
5) How do you check all the goods in the production line?
A: We have spot inspection and finished product inspection. We check the goods when they go into next step production procedure. And all the goods will be tested after welding, assure 100% no leaking problems.
Trade:
Your inquiry will be replied within 12 hours.
Well-trained & experienced sales can reply your inquiries in English.
During working time, E-mail will be replied to you within 2 hours
OEM & ODM projects are highly welcomed. We have strong R&D team.
The order will be produced exactly according to order details and proofed samples.
Our QC will submitinspection report before shipment.
Your business relationship with us will be confidential to any third party.
Good after-sale service.
If there’s anything we could help, please feel free to contact us.
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Shipping Cost:
Estimated freight per unit. |
To be negotiated |
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| Material: | Carbon Steel |
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| Load: | Drive Shaft |
| Stiffness & Flexibility: | Stiffness / Rigid Axle |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | Order Sample laser cutting parts
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| Customization: |
Available
| Customized Request |
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Applications of Spline Couplings
A spline coupling is a highly effective means of connecting two or more components. These types of couplings are very efficient, as they combine linear motion with rotation, and their efficiency makes them a desirable choice in numerous applications. Read on to learn more about the main characteristics and applications of spline couplings. You will also be able to determine the predicted operation and wear. You can easily design your own couplings by following the steps outlined below.
Optimal design
The spline coupling plays an important role in transmitting torque. It consists of a hub and a shaft with splines that are in surface contact without relative motion. Because they are connected, their angular velocity is the same. The splines can be designed with any profile that minimizes friction. Because they are in contact with each other, the load is not evenly distributed, concentrating on a small area, which can deform the hub surface.
Optimal spline coupling design takes into account several factors, including weight, material characteristics, and performance requirements. In the aeronautics industry, weight is an important design factor. S.A.E. and ANSI tables do not account for weight when calculating the performance requirements of spline couplings. Another critical factor is space. Spline couplings may need to fit in tight spaces, or they may be subject to other configuration constraints.
Optimal design of spline couplers may be characterized by an odd number of teeth. However, this is not always the case. If the external spline’s outer diameter exceeds a certain threshold, the optimal spline coupling model may not be an optimal choice for this application. To optimize a spline coupling for a specific application, the user may need to consider the sizing method that is most appropriate for their application.
Once a design is generated, the next step is to test the resulting spline coupling. The system must check for any design constraints and validate that it can be produced using modern manufacturing techniques. The resulting spline coupling model is then exported to an optimisation tool for further analysis. The method enables a designer to easily manipulate the design of a spline coupling and reduce its weight.
The spline coupling model 20 includes the major structural features of a spline coupling. A product model software program 10 stores default values for each of the spline coupling’s specifications. The resulting spline model is then calculated in accordance with the algorithm used in the present invention. The software allows the designer to enter the spline coupling’s radii, thickness, and orientation.
Characteristics
An important aspect of aero-engine splines is the load distribution among the teeth. The researchers have performed experimental tests and have analyzed the effect of lubrication conditions on the coupling behavior. Then, they devised a theoretical model using a Ruiz parameter to simulate the actual working conditions of spline couplings. This model explains the wear damage caused by the spline couplings by considering the influence of friction, misalignment, and other conditions that are relevant to the splines’ performance.
In order to design a spline coupling, the user first inputs the design criteria for sizing load carrying sections, including the external spline 40 of the spline coupling model 30. Then, the user specifies torque margin performance requirement specifications, such as the yield limit, plastic buckling, and creep buckling. The software program then automatically calculates the size and configuration of the load carrying sections and the shaft. These specifications are then entered into the model software program 10 as specification values.
Various spline coupling configuration specifications are input on the GUI screen 80. The software program 10 then generates a spline coupling model by storing default values for the various specifications. The user then can manipulate the spline coupling model by modifying its various specifications. The final result will be a computer-aided design that enables designers to optimize spline couplings based on their performance and design specifications.
The spline coupling model software program continually evaluates the validity of spline coupling models for a particular application. For example, if a user enters a data value signal corresponding to a parameter signal, the software compares the value of the signal entered to the corresponding value in the knowledge base. If the values are outside the specifications, a warning message is displayed. Once this comparison is completed, the spline coupling model software program outputs a report with the results.
Various spline coupling design factors include weight, material properties, and performance requirements. Weight is one of the most important design factors, particularly in the aeronautics field. ANSI and S.A.E. tables do not consider these factors when calculating the load characteristics of spline couplings. Other design requirements may also restrict the configuration of a spline coupling.
Applications
Spline couplings are a type of mechanical joint that connects two rotating shafts. Its two parts engage teeth that transfer load. Although splines are commonly over-dimensioned, they are still prone to fatigue and static behavior. These properties also make them prone to wear and tear. Therefore, proper design and selection are vital to minimize wear and tear on splines. There are many applications of spline couplings.
A key design is based on the size of the shaft being joined. This allows for the proper spacing of the keys. A novel method of hobbing allows for the formation of tapered bases without interference, and the root of the keys is concentric with the axis. These features enable for high production rates. Various applications of spline couplings can be found in various industries. To learn more, read on.
FE based methodology can predict the wear rate of spline couplings by including the evolution of the coefficient of friction. This method can predict fretting wear from simple round-on-flat geometry, and has been calibrated with experimental data. The predicted wear rate is reasonable compared to the experimental data. Friction evolution in spline couplings depends on the spline geometry. It is also crucial to consider the lubrication condition of the splines.
Using a spline coupling reduces backlash and ensures proper alignment of mated components. The shaft’s splined tooth form transfers rotation from the splined shaft to the internal splined member, which may be a gear or other rotary device. A spline coupling’s root strength and torque requirements determine the type of spline coupling that should be used.
The spline root is usually flat and has a crown on one side. The crowned spline has a symmetrical crown at the centerline of the face-width of the spline. As the spline length decreases toward the ends, the teeth are becoming thinner. The tooth diameter is measured in pitch. This means that the male spline has a flat root and a crowned spline.
Predictability
Spindle couplings are used in rotating machinery to connect two shafts. They are composed of two parts with teeth that engage each other and transfer load. Spline couplings are commonly over-dimensioned and are prone to static and fatigue behavior. Wear phenomena are also a common problem with splines. To address these issues, it is essential to understand the behavior and predictability of these couplings.
Dynamic behavior of spline-rotor couplings is often unclear, particularly if the system is not integrated with the rotor. For example, when a misalignment is not present, the main response frequency is one X-rotating speed. As the misalignment increases, the system starts to vibrate in complex ways. Furthermore, as the shaft orbits depart from the origin, the magnitudes of all the frequencies increase. Thus, research results are useful in determining proper design and troubleshooting of rotor systems.
The model of misaligned spline couplings can be obtained by analyzing the stress-compression relationships between two spline pairs. The meshing force model of splines is a function of the system mass, transmitting torque, and dynamic vibration displacement. This model holds when the dynamic vibration displacement is small. Besides, the CZPT stepping integration method is stable and has high efficiency.
The slip distributions are a function of the state of lubrication, coefficient of friction, and loading cycles. The predicted wear depths are well within the range of measured values. These predictions are based on the slip distributions. The methodology predicts increased wear under lightly lubricated conditions, but not under added lubrication. The lubrication condition and coefficient of friction are the key factors determining the wear behavior of splines.
editor by CX 2023-04-24
China Standard CNC Machining Forged Steel Driving/Worm/Pinion/Screw/Ball Mill//Rotary/Truck/Roll/Transmission/Crank/Axle/Spindle/Roller/ Spline/Gear Shaft with Best Sales
Product Description
CNC Machining Forged Steel Driving/Worm/Pinion/Screw/Ball Mill//Rotary/Truck/Roll/Transmission/Crank/Axle/Spindle/Roller/ Spline/Gear Shaft
Product Disply
| Process | Hot forging, die forging and Free forging |
| Material | Carbon steel: 1571,1571,1035,1045,1055,Q235,Q345 etc., Alloy steel: 40Cr, 20CrMnTi, 20CrNiMo,35CrMn,42CrMo4 etc., Stainless steel, SS304,SS316 etc. Aluminum |
| Standard | ISO, DIN, ASTM, BS ect. |
| Weight | 5kg – 5000kg |
| Applicable Machining Process | CNC Machining/ Lathing/ Milling/ Turning/ Boring/ Drilling/ Tapping/ Broaching/Reaming etc. |
| Machining Tolerance | 0.02mm-0.1mm |
| Machined Surface Quality | Ra 0.8-Ra3.2 according to customer requirement |
| Applicable Heat Treatment | Normalization , quenching and tempering, Case Hardening, Nitriding, Carbon Nitriding, |
| Applicable Finish Surface Treatment | Shot/sand blast, polishing, Surface passivation, Powder coating, E- Coating, Chromate Plating, zinc-plate, Dacromat, Painting, |
| Testing equipment | Supersonic inspection machine, Supersonic flaw detecting machine , physics and chemical analysis. |
| Packing | Wooden cases or according to customers’ needs |
| MOQ of mass production | 10 pieces |
Q: What do I need for offering a quote ?
A: Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment and other technical requirement etc.) ,quantity, application or samples. Then we will quote the best price within 24h.
Q: What is your MOQ?
A: MOQ depends on our client’s needs, besides,we welcome trial order before mass-production.
Q: What is the production cycle?
A: It varies a lot depending on product dimension,technical requirements and quantity. We always try to meet customers’ requirement by adjusting our workshop schedule.
Q: What kind of payment terms do you accept?
A.: T/T, L/C, Escrow, Paypal, western union, etc.
Q: Is it possible to know how is my product going on without visiting your company?
A: We will offer a detailed products schedule and send weekly reports with digital pictures and videos which show the machining progress.
| Material: | Alloy Steel |
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| Load: | Drive Shaft |
| Stiffness & Flexibility: | Flexible Shaft |
| Journal Diameter Dimensional Accuracy: | IT01-IT5 |
| Axis Shape: | Straight Shaft |
| Shaft Shape: | Real Axis |
| Customization: |
Available
| Customized Request |
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The Benefits of Spline Couplings for Disc Brake Mounting Interfaces
Spline couplings are commonly used for securing disc brake mounting interfaces. Spline couplings are often used in high-performance vehicles, aeronautics, and many other applications. However, the mechanical benefits of splines are not immediately obvious. Listed below are the benefits of spline couplings. We’ll discuss what these advantages mean for you. Read on to discover how these couplings work.
Disc brake mounting interfaces are splined
There are two common disc brake mounting interfaces – splined and six-bolt. Splined rotors fit on splined hubs; six-bolt rotors will need an adapter to fit on six-bolt hubs. The six-bolt method is easier to maintain and may be preferred by many cyclists. If you’re thinking of installing a disc brake system, it is important to know how to choose the right splined and center lock interfaces.
Aerospace applications
The splines used for spline coupling in aircraft are highly complex. While some previous researches have addressed the design of splines, few publications have tackled the problem of misaligned spline coupling. Nevertheless, the accurate results we obtained were obtained using dedicated simulation tools, which are not commercially available. Nevertheless, such tools can provide a useful reference for our approach. It would be beneficial if designers could use simple tools for evaluating contact pressure peaks. Our analytical approach makes it possible to find answers to such questions.
The design of a spline coupling for aerospace applications must be accurate to minimize weight and prevent failure mechanisms. In addition to weight reduction, it is necessary to minimize fretting fatigue. The pressure distribution on the spline coupling teeth is a significant factor in determining its fretting fatigue. Therefore, we use analytical and experimental methods to examine the contact pressure distribution in the axial direction of spline couplings.
The teeth of a spline coupling can be categorized by the type of engagement they provide. This study investigates the position of resultant contact forces in the teeth of a spline coupling when applied to pitch diameter. Using FEM models, numerical results are generated for nominal and parallel offset misalignments. The axial tooth profile determines the behavior of the coupling component and its ability to resist wear. Angular misalignment is also a concern, causing misalignment.
In order to assess wear damage of a spline coupling, we must take into consideration the impact of fretting on the components. This wear is caused by relative motion between the teeth that engage them. The misalignment may be caused by vibrations, cyclical tooth deflection, or angular misalignment. The result of this analysis may help designers improve their spline coupling designs and develop improved performance.
CZPT polyimide, an abrasion-resistant polymer, is a popular choice for high-temperature spline couplings. This material reduces friction and wear, provides a low friction surface, and has a low wear rate. Furthermore, it offers up to 50 times the life of metal on metal spline connections. For these reasons, it is important to choose the right material for your spline coupling.
High-performance vehicles
A spline coupler is a device used to connect splined shafts. A typical spline coupler resembles a short pipe with splines on either end. There are two basic types of spline coupling: single and dual spline. One type attaches to a drive shaft, while the other attaches to the gearbox. While spline couplings are typically used in racing, they’re also used for performance problems.
The key challenge in spline couplings is to determine the optimal dimension of spline joints. This is difficult because no commercial codes allow the simulation of misaligned joints, which can destroy components. This article presents analytical approaches to estimating contact pressures in spline connections. The results are comparable with numerical approaches but require special codes to accurately model the coupling operation. This research highlights several important issues and aims to make the application of spline couplings in high-performance vehicles easier.
The stiffness of spline assemblies can be calculated using tooth-like structures. Such splines can be incorporated into the spline joint to produce global stiffness for torsional vibration analysis. Bearing reactions are calculated for a certain level of misalignment. This information can be used to design bearing dimensions and correct misalignment. There are three types of spline couplings.
Major diameter fit splines are made with tightly controlled outside diameters. This close fit provides concentricity transfer from the male to the female spline. The teeth of the male spline usually have chamfered tips and clearance with fillet radii. These splines are often manufactured from billet steel or aluminum. These materials are renowned for their strength and uniform grain created by the forging process. ANSI and DIN design manuals define classes of fit.
Disc brake mounting interfaces
A spline coupling for disc brake mounting interfaces is a type of hub-to-brake-disc mount. It is a highly durable coupling mechanism that reduces heat transfer from the disc to the axle hub. The mounting arrangement also isolates the axle hub from direct contact with the disc. It is also designed to minimize the amount of vehicle downtime and maintenance required to maintain proper alignment.
Disc brakes typically have substantial metal-to-metal contact with axle hub splines. The discs are held in place on the hub by intermediate inserts. This metal-to-metal contact also aids in the transfer of brake heat from the brake disc to the axle hub. Spline coupling for disc brake mounting interfaces comprises a mounting ring that is either a threaded or non-threaded spline.
During drag brake experiments, perforated friction blocks filled with various additive materials are introduced. The materials included include Cu-based powder metallurgy material, a composite material, and a Mn-Cu damping alloy. The filling material affects the braking interface’s wear behavior and friction-induced vibration characteristics. Different filling materials produce different types of wear debris and have different wear evolutions. They also differ in their surface morphology.
Disc brake couplings are usually made of two different types. The plain and HD versions are interchangeable. The plain version is the simplest to install, while the HD version has multiple components. The two-piece couplings are often installed at the same time, but with different mounting interfaces. You should make sure to purchase the appropriate coupling for your vehicle. These interfaces are a vital component of your vehicle and must be installed correctly for proper operation.
Disc brakes use disc-to-hub elements that help locate the forces and displace them to the rim. These elements are typically made of stainless steel, which increases the cost of manufacturing the disc brake mounting interface. Despite their benefits, however, the high braking force loads they endure are hard on the materials. Moreover, excessive heat transferred to the intermediate elements can adversely affect the fatigue life and long-term strength of the brake system.
editor by CX 2023-04-23
China wholesaler Suj2 Bearing Steel Material Hardness Chrome Plated 3D Printer Spline Shaft drive shaft carrier bearing
Product Description
Product Description
Product description
Linear shaft features
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Items |
Linear shaft |
Flexible shaft |
Hollow shaft |
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Material |
CK45, SUJ2 |
CK45 |
SUJ2 |
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Heat treatment |
Induction hardened |
Not hardened |
Induction hardened |
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Surface hardness |
HRC58±2 |
HRC15±3 |
HRC60±2 |
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Surface treated |
Hard chrome plated |
Hard chrome plated |
Hard chrome plated |
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Precision |
h7, g6, h6 |
h7, g6 |
h7, g6, h6 |
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Roundness |
Max3.0µm |
Max3.0µm |
Max3.0µm |
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Straightness |
Max5.0µm |
Max5.0µm |
Max5.0µm |
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Chrome thickness |
20-30µm |
30µm |
30µm |
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Roughness |
Max1.5µm |
Max1.5µm |
Max1.5µm |
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Process machinized |
Threading, reduced shaft dia,coaxial holes drilled and tapped, flats-single or multiple, key way, snap ring grooves, radial holes drilled and tapped, chamfering |
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Linear shaft description
ERSK Linear offers linear shafting in a variety of different options to meet a wide range of customer needs. Available in hardened steel, CK45 material steel, SUJ2 material steel, hollow steel , inch and metric, Simplicity Shafting maintains the ideal surface finish for linear plain bearings and ball bearings.
· CZPT round shafting is available in inch sizes from 3/16″ thru 4″ and metric sizes from 3 mm thru 80 mm
· Machining available CZPT request
High Reliability
ERSK linear shaft has very straight quality control standards covering every production process. With proper lubrication and use, trouble-free operation for an extended period of time is possible.
Smooth Operation
The high efficiency of linear shaft is vastly superior to conventional shaft. The torque required is less than 30%. Linear motion can be easily changed from rotary motion.
High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience,have resulted in the most durable linear shaft manufactured.
Induction linear shaft, Flexible linear shaft,
linear bearings shaft, hollow linear shaft,
hardened linear shaft, chromed linear shaft
Application
For delicate application in industrial application, machine tool and automation application.
Linear Shafts – Technical Properties.
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Test linear shaft surface roughness the max roughness is Ra0.4um |
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Straight the linear shaft straightness: We control the traighness 0.05mm of linear shaft 300mm |
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Test hardness: S45C materail induction linear shaft, the hardness is HRC55-58 GCr15 (SUJ2) materail induction linear shaft, the hardness is HRC58-63 If flexible shaft, the hardness is based on the shaft material itself |
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| Test the linear shaft dia precision, as usually, h7 is the normal tolerance in our stock, But we can offer g6, h6 precision too. if any special tolerance, we are able to customize them for you. |
We can machinize all kinds of machining,
Related products
Related products
There are many kinds of products we can offer, If you are interested in them, please click the picture and see the details.
Production Flow
Over service
Over Service
Packaging & Shipping
Packaging and shipping
PP bag for each linear shaft, Standard exported carton outside for small order shipping by international express, such as DHL, TNT, UPS
Wooden box outside for big quantity or very long linear shaft by sea, by air
Company Profile
Company information
Our principle
| Material: | Gcr15 |
|---|---|
| Load: | Drive Shaft |
| Stiffness & Flexibility: | Stiffness / Rigid Axle |
| Journal Diameter Dimensional Accuracy: | H7, H6, G6 |
| Axis Shape: | Straight Shaft |
| Shaft Shape: | Real Axis |
| Samples: |
US$ 3/Meter
1 Meter(Min.Order) | |
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| Customization: |
Available
| Customized Request |
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Analytical Approaches to Estimating Contact Pressures in Spline Couplings
A spline coupling is a type of mechanical connection between two rotating shafts. It consists of two parts – a coupler and a coupling. Both parts have teeth which engage and transfer loads. However, spline couplings are typically over-dimensioned, which makes them susceptible to fatigue and static behavior. Wear phenomena can also cause the coupling to fail. For this reason, proper spline coupling design is essential for achieving optimum performance.
Modeling a spline coupling
Spline couplings are becoming increasingly popular in the aerospace industry, but they operate in a slightly misaligned state, causing both vibrations and damage to the contact surfaces. To solve this problem, this article offers analytical approaches for estimating the contact pressures in a spline coupling. Specifically, this article compares analytical approaches with pure numerical approaches to demonstrate the benefits of an analytical approach.
To model a spline coupling, first you create the knowledge base for the spline coupling. The knowledge base includes a large number of possible specification values, which are related to each other. If you modify one specification, it may lead to a warning for violating another. To make the design valid, you must create a spline coupling model that meets the specified specification values.
After you have modeled the geometry, you must enter the contact pressures of the two spline couplings. Then, you need to determine the position of the pitch circle of the spline. In Figure 2, the centre of the male coupling is superposed to that of the female spline. Then, you need to make sure that the alignment meshing distance of the two splines is the same.
Once you have the data you need to create a spline coupling model, you can begin by entering the specifications for the interface design. Once you have this data, you need to choose whether to optimize the internal spline or the external spline. You’ll also need to specify the tooth friction coefficient, which is used to determine the stresses in the spline coupling model 20. You should also enter the pilot clearance, which is the clearance between the tip 186 of a tooth 32 on one spline and the feature on the mating spline.
After you have entered the desired specifications for the external spline, you can enter the parameters for the internal spline. For example, you can enter the outer diameter limit 154 of the major snap 54 and the minor snap 56 of the internal spline. The values of these parameters are displayed in color-coded boxes on the Spline Inputs and Configuration GUI screen 80. Once the parameters are entered, you’ll be presented with a geometric representation of the spline coupling model 20.
Creating a spline coupling model 20
The spline coupling model 20 is created by a product model software program 10. The software validates the spline coupling model against a knowledge base of configuration-dependent specification constraints and relationships. This report is then input to the ANSYS stress analyzer program. It lists the spline coupling model 20’s geometric configurations and specification values for each feature. The spline coupling model 20 is automatically recreated every time the configuration or performance specifications of the spline coupling model 20 are modified.
The spline coupling model 20 can be configured using the product model software program 10. A user specifies the axial length of the spline stack, which may be zero, or a fixed length. The user also enters a radial mating face 148, if any, and selects a pilot clearance specification value of 14.5 degrees or 30 degrees.
A user can then use the mouse 110 to modify the spline coupling model 20. The spline coupling knowledge base contains a large number of possible specification values and the spline coupling design rule. If the user tries to change a spline coupling model, the model will show a warning about a violation of another specification. In some cases, the modification may invalidate the design.
In the spline coupling model 20, the user enters additional performance requirement specifications. The user chooses the locations where maximum torque is transferred for the internal and external splines 38 and 40. The maximum torque transfer location is determined by the attachment configuration of the hardware to the shafts. Once this is selected, the user can click “Next” to save the model. A preview of the spline coupling model 20 is displayed.
The model 20 is a representation of a spline coupling. The spline specifications are entered in the order and arrangement as specified on the spline coupling model 20 GUI screen. Once the spline coupling specifications are entered, the product model software program 10 will incorporate them into the spline coupling model 20. This is the last step in spline coupling model creation.
Analysing a spline coupling model 20
An analysis of a spline coupling model consists of inputting its configuration and performance specifications. These specifications may be generated from another computer program. The product model software program 10 then uses its internal knowledge base of configuration dependent specification relationships and constraints to create a valid three-dimensional parametric model 20. This model contains information describing the number and types of spline teeth 32, snaps 34, and shoulder 36.
When you are analysing a spline coupling, the software program 10 will include default values for various specifications. The spline coupling model 20 comprises an internal spline 38 and an external spline 40. Each of the splines includes its own set of parameters, such as its depth, width, length, and radii. The external spline 40 will also contain its own set of parameters, such as its orientation.
Upon selecting these parameters, the software program will perform various analyses on the spline coupling model 20. The software program 10 calculates the nominal and maximal tooth bearing stresses and fatigue life of a spline coupling. It will also determine the difference in torsional windup between an internal and an external spline. The output file from the analysis will be a report file containing model configuration and specification data. The output file may also be used by other computer programs for further analysis.
Once these parameters are set, the user enters the design criteria for the spline coupling model 20. In this step, the user specifies the locations of maximum torque transfer for both the external and internal spline 38. The maximum torque transfer location depends on the configuration of the hardware attached to the shafts. The user may enter up to four different performance requirement specifications for each spline.
The results of the analysis show that there are two phases of spline coupling. The first phase shows a large increase in stress and vibration. The second phase shows a decline in both stress and vibration levels. The third stage shows a constant meshing force between 300N and 320N. This behavior continues for a longer period of time, until the final stage engages with the surface.
Misalignment of a spline coupling
A study aimed to investigate the position of the resultant contact force in a spline coupling engaging teeth under a steady torque and rotating misalignment. The study used numerical methods based on Finite Element Method (FEM) models. It produced numerical results for nominal conditions and parallel offset misalignment. The study considered two levels of misalignment – 0.02 mm and 0.08 mm – with different loading levels.
The results showed that the misalignment between the splines and rotors causes a change in the meshing force of the spline-rotor coupling system. Its dynamics is governed by the meshing force of splines. The meshing force of a misaligned spline coupling is related to the rotor-spline coupling system parameters, the transmitting torque, and the dynamic vibration displacement.
Despite the lack of precise measurements, the misalignment of splines is a common problem. This problem is compounded by the fact that splines usually feature backlash. This backlash is the result of the misaligned spline. The authors analyzed several splines, varying pitch diameters, and length/diameter ratios.
A spline coupling is a two-dimensional mechanical system, which has positive backlash. The spline coupling is comprised of a hub and shaft, and has tip-to-root clearances that are larger than the backlash. A form-clearance is sufficient to prevent tip-to-root fillet contact. The torque on the splines is transmitted via friction.
When a spline coupling is misaligned, a torque-biased thrust force is generated. In such a situation, the force can exceed the torque, causing the component to lose its alignment. The two-way transmission of torque and thrust is modeled analytically in the present study. The analytical approach provides solutions that can be integrated into the design process. So, the next time you are faced with a misaligned spline coupling problem, make sure to use an analytical approach!
In this study, the spline coupling is analyzed under nominal conditions without a parallel offset misalignment. The stiffness values obtained are the percentage difference between the nominal pitch diameter and load application diameter. Moreover, the maximum percentage difference in the measured pitch diameter is 1.60% under a torque of 5000 N*m. The other parameter, the pitch angle, is taken into consideration in the calculation.
editor by CX 2023-04-21
China Custom Durable Stainless Steel Drive Shaft with Spline Gears drive shaft carrier bearing
Product Description
Product Description
Product Parameters
| Item | Spur Gear Axle Shaft |
| Material | 4140,4340,40Cr,42Crmo,42Crmo4,20Cr,20CrMnti, 20Crmo,35Crmo |
| OEM NO | Customize |
| Certification | ISO/TS16949 |
| Test Requirement | Magnetic Powder Test, Hardness Test, Dimension Test |
| Color | Paint , Natural Finish ,Machining All Around |
| Material | Aluminum: 5000series(5052…)/6000series(6061…)/7000series(7075…) |
| Steel: Carbon Steel,Middle Steel,Steel Alloy,etc. | |
| Stainess Steel: 303/304/316,etc. | |
| Copper/Brass/Bronze/Red Copper,etc. | |
| Plastic:ABS,PP,PC,Nylon,Delrin(POM),Bakelite,etc. | |
| Size | According to Customer’s drawing or samples |
| Process | CNC machining,Turning,Milling,Stamping,Grinding,Welding,Wire Injection,Cutting,etc. |
| Tolerance | ≥+/-0.03mm |
| Surface Treatment | (Sandblast)&(Hard)&(Color)Anodizing,(Chrome,Nickel,Zinc…)Plating,Painting,Powder Coating,Polishing,Blackened,Hardened,Lasering,Engraving,etc. |
| File Formats | ProE,SolidWorks,UG,CAD,PDF(IGS,X-T,STP,STL) |
| Sample | Available |
| Packing | Spline protect cover ,Wood box ,Waterproof membrane; Or per customers’ requirements. |
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| Material: | Alloy Steel |
|---|---|
| Load: | Drive Shaft |
| Axis Shape: | Straight Shaft |
| Appearance Shape: | Round |
| Rotation: | Cw |
| Yield: | 5, 000PCS / Month |
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US$ 0/Piece
1 Piece(Min.Order) | |
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The Different Types of Splines in a Splined Shaft
A splined shaft is a machine component with internal and external splines. The splines are formed in four different ways: Involute, Parallel, Serrated, and Ball. You can learn more about each type of spline in this article. When choosing a splined shaft, be sure to choose the right one for your application. Read on to learn about the different types of splines and how they affect the shaft’s performance.
Involute splines
Involute splines in a splined shaft are used to secure and extend mechanical assemblies. They are smooth, inwardly curving grooves that resist separation during operation. A shaft with involute splines is often longer than the shaft itself. This feature allows for more axial movement. This is beneficial for many applications, especially in a gearbox.
The involute spline is a shaped spline, similar to a parallel spline. It is angled and consists of teeth that create a spiral pattern that enables linear and rotatory motion. It is distinguished from other splines by the serrations on its flanks. It also has a flat top. It is a good option for couplers and other applications where angular movement is necessary.
Involute splines are also called involute teeth because of their shape. They are flat on the top and curved on the sides. These teeth can be either internal or external. As a result, involute splines provide greater surface contact, which helps reduce stress and fatigue. Regardless of the shape, involute splines are generally easy to machine and fit.
Involute splines are a type of splines that are used in splined shafts. These splines have different names, depending on their diameters. An example set of designations is for a 32-tooth male spline, a 2,500-tooth module, and a 30 degree pressure angle. An example of a female spline, a fillet root spline, is used to describe the diameter of the splined shaft.
The effective tooth thickness of splines is dependent on the number of keyways and the type of spline. Involute splines in splined shafts should be designed to engage 25 to 50 percent of the spline teeth during the coupling. Involute splines should be able to withstand the load without cracking.
Parallel splines
Parallel splines are formed on a splined shaft by putting one or more teeth into another. The male spline is positioned at the center of the female spline. The teeth of the male spline are also parallel to the shaft axis, but a common misalignment causes the splines to roll and tilt. This is common in many industrial applications, and there are a number of ways to improve the performance of splines.
Typically, parallel splines are used to reduce friction in a rotating part. The splines on a splined shaft are narrower on the end face than the interior, which makes them more prone to wear. This type of spline is used in a variety of industries, such as machinery, and it also allows for greater efficiency when transmitting torque.
Involute splines on a splined shaft are the most common. They have equally spaced teeth, and are therefore less likely to crack due to fatigue. They also tend to be easy to cut and fit. However, they are not the best type of spline. It is important to understand the difference between parallel and involute splines before deciding on which spline to use.
The difference between splined and involute splines is the size of the grooves. Involute splines are generally larger than parallel splines. These types of splines provide more torque to the gear teeth and reduce stress during operation. They are also more durable and have a longer life span. And because they are used on farm machinery, they are essential in this type of application.
Serrated splines
A Serrated Splined Shaft has several advantages. This type of shaft is highly adjustable. Its large number of teeth allows large torques, and its shorter tooth width allows for greater adjustment. These features make this type of shaft an ideal choice for applications where accuracy is critical. Listed below are some of the benefits of this type of shaft. These benefits are just a few of the advantages. Learn more about this type of shaft.
The process of hobbing is inexpensive and highly accurate. It is useful for external spline shafts, but is not suitable for internal splines. This type of process forms synchronized shapes on the shaft, reducing the manufacturing cycle and stabilizing the relative phase between spline and thread. It uses a grinding wheel to shape the shaft. CZPT Manufacturing has a large inventory of Serrated Splined Shafts.
The teeth of a Serrated Splined Shaft are designed to engage with the hub over the entire circumference of the shaft. The teeth of the shaft are spaced uniformly around the spline, creating a multiple-tooth point of contact over the entire length of the shaft. The results of these analyses are usually satisfactory. But there are some limitations. To begin with, the splines of the Serrated Splined Shaft should be chosen carefully. If the application requires large-scale analysis, it may be necessary to modify the design.
The splines of the Serrated Splined Shaft are also used for other purposes. They can be used to transmit torque to another device. They also act as an anti-rotational device and function as a linear guide. Both the design and the type of splines determine the function of the Splined Shaft. In the automobile industry, they are used in vehicles, aerospace, earth-moving machinery, and many other industries.
Ball splines
The invention relates to a ball-spinned shaft. The shaft comprises a plurality of balls that are arranged in a series and are operatively coupled to a load path section. The balls are capable of rolling endlessly along the path. This invention also relates to a ball bearing. Here, a ball bearing is one of the many types of gears. The following discussion describes the features of a ball bearing.
A ball-splined shaft assembly comprises a shaft with at least one ball-spline groove and a plurality of circumferential step grooves. The shaft is held in a first holding means that extends longitudinally and is rotatably held by a second holding means. Both the shaft and the first holding means are driven relative to one another by a first driving means. It is possible to manufacture a ball-splined shaft in a variety of ways.
A ball-splined shaft features a nut with recirculating balls. The ball-splined nut rides in these grooves to provide linear motion while preventing rotation. A splined shaft with a nut that has recirculating balls can also provide rotary motion. A ball splined shaft also has higher load capacities than a ball bushing. For these reasons, ball splines are an excellent choice for many applications.
In this invention, a pair of ball-spinned shafts are housed in a box under a carrier device 40. Each of the two shafts extends along a longitudinal line of arm 50. One end of each shaft is supported rotatably by a slide block 56. The slide block also has a support arm 58 that supports the center arm 50 in a cantilever fashion.
Sector no-go gage
A no-go gauge is a tool that checks the splined shaft for oversize. It is an effective way to determine the oversize condition of a splined shaft without removing the shaft. It measures external splines and serrations. The no-go gage is available in sizes ranging from 19mm to 130mm with a 25mm profile length.
The sector no-go gage has two groups of diametrally opposed teeth. The space between them is manufactured to a maximum space width and the tooth thickness must be within a predetermined tolerance. This gage would be out of tolerance if the splines were measured with a pin. The dimensions of this splined shaft can be found in the respective ANSI or DIN standards.
The go-no-go gage is useful for final inspection of thread pitch diameter. It is also useful for splined shafts and threaded nuts. The thread of a screw must match the contour of the go-no-go gage head to avoid a no-go condition. There is no substitute for a quality machine. It is an essential tool for any splined shaft and fastener manufacturer.
The NO-GO gage can detect changes in tooth thickness. It can be calibrated under ISO17025 standards and has many advantages over a non-go gage. It also gives a visual reference of the thickness of a splined shaft. When the teeth match, the shaft is considered ready for installation. It is a critical process. In some cases, it is impossible to determine the precise length of the shaft spline.
The 45-degree pressure angle is most commonly used for axles and torque-delivering members. This pressure angle is the most economical in terms of tool life, but the splines will not roll neatly like a 30 degree angle. The 45-degree spline is more likely to fall off larger than the other two. Oftentimes, it will also have a crowned look. The 37.5 degree pressure angle is a compromise between the other two pressure angles. It is often used when the splined shaft material is harder than usual.
editor by CX 2023-04-20