Product Description
Product Description
Trailer Parts Axel Use for 3 Axle Fence Semi Trailer
1.12 Ton 13T 16T 20T 25T Standard size American type axle for truck semi trailer.
2. Professional casting production line.
3. We can customize it according to your requirements.
4. The Logo can be customized.
5. If you only buy spare parts, Our engineer can go to your factory to teaching your empolyee how to assembly the products !
Company Profile
ZheZheJiang angchi Automobile Technology Co., Ltd was established in 2571, engaged in the production of semi-trailer parts and truck trailers.The company has 3 million fixed assets and 180 skilled employees.
It has established an advanced workshop covering an area of 20,000 square meters. Always adhere to the “innovation, quality, dedication, mutual benefit” 8 word concept. The company has strong technical strength, sophisticated manufacturing equipment, professional production team, providing a solid backing for product innovation and quality assurance.
Based on the business philosophy of innovation, quality, survival, reputation and price,we are based in China’s trailer city.
Packaging & Shipping
Buying Xihu (West Lake) Dis.s for Semi Trailers
**You please send us your enquiry;
**We shall reply you with the quotation within 12 hours;
**We negotiate on the configuration that you need;
**Confirmation of the tech data → sign contract (P/I) → 30% deposit (or L/C issuing)→ production;
**Manufacturing process updated news → completing production;
**Balance payment → ex works → shipment → custom clearance → A/S service for 1 year.
FAQ
A. What are our advantages compared with other manufacturers
- Competitive Price — We work as the leading dealers of various leading China Semi Trailers manufacturers/factories.From numerous comparison and feedback from clients, our price is more competitive than manufacturers/factories.
- Quick Response— Our team is consisted of a group of diligent and enterprising people, working 24/7 to respond client inquiries and questions all the time. Most problems can be solved within 12 hours.
- Fast delivery — Normally it will take more than 25-45 days for manufacturers/ factories to produce the ordered trailers, while we have a variety of resources, locally and nation widely, to receive trailers in timely manner. In 80% circumstance, we can have a 15-20 days delivery of regular trailers for our clients.
- High Quality—–Every process of choose material ,welding ,sand blasting,painting with detailed inspection,accept 100% inspection during production and after production.
B. Which payment terms can we accept?
- Normally we can work on T/T term or L/C term.
- On T/T term, 30% down payment is required in advance, 70% balance shall be settled before delivery, or against the copy of original B/L for regular client.
- On L/C term, normally need 30% down payment by T/T, 70% by L/C at sight. a 100% irrevocable L/C without “soft clauses” can be accepted sometimes. Please seek the advice from the individual sales manager whom you work with.
C. How long will our price be valid?
- Price with long valid time — We are a tender and friendly supplier, never greedy on windfall profit. Basically, our price remains stable through the year. We only adjust our price based on 2 situations: The rate of USD:RMB varies significantly according to the international currency exchange rates. Manufacturers/factories adjusted the trailer price, because of the increasing labor cost and raw material cost.
D. What logistics ways we can work for shipment?
- We can ship all trailer by various transportation tools.
- For 90% of our shipment, we will go by sea, to all main continents such as South America, Middle East, Africa, Oceania etc, either by container or RoRo/Bulk Shipment.
- For neighborhood countries of China, such as Russia, Tajikistan, Kazakhstan,Mongolia etc, we can ship trucks by road or railway.
- For light spare parts in urgent demand, we can ship it by international courier service, such as DHL, TNT, UPS, or Fedex.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Condition: | New |
|---|---|
| Axle Number: | 2 |
| Application: | Trailer |
| Certification: | ASTM, CE, DIN, ISO |
| Material: | Steel |
| Type: | Rear Axles |
| Customization: |
Available
| Customized Request |
|---|
Where can I find information on axle load limits for various types of vehicles?
When seeking information on axle load limits for different types of vehicles, there are several reliable sources where you can find the necessary information. Here’s a detailed explanation of where you can find information on axle load limits:
1. Vehicle Owner’s Manual:
The first and most accessible source of information on axle load limits is the vehicle owner’s manual. The owner’s manual provided by the vehicle manufacturer typically includes important details about the vehicle’s specifications, including axle load limits. Look for sections related to vehicle loading, weight distribution, or axle specifications to find the recommended load limits for each axle of your specific vehicle model.
2. Government Transportation Authorities:
Government transportation authorities, such as departments of transportation or road transport authorities, often provide guidelines and regulations regarding vehicle weight limits, including axle load limits. These authorities establish and enforce weight restrictions to ensure road safety and prevent damage to infrastructure. Visit the website of your local or national transportation authority to access relevant regulations or guidelines pertaining to axle load limits for various types of vehicles.
3. Commercial Vehicle Regulations:
If you are specifically interested in axle load limits for commercial vehicles, such as trucks or buses, consult the commercial vehicle regulations applicable in your region. These regulations are established to ensure safe and efficient operation of commercial vehicles on public roads. Regulatory bodies responsible for commercial vehicle operations often provide detailed information on axle load limits, weight distribution requirements, and other related specifications.
4. Vehicle Manufacturer or Dealer:
If you require axle load limit information for a specific vehicle model or variant, contacting the vehicle manufacturer or a local authorized dealer can be helpful. They can provide accurate and up-to-date information specific to your vehicle. Provide them with the vehicle identification number (VIN) or other relevant details to ensure they can assist you accurately.
5. Online Resources and Databases:
There are online resources and databases dedicated to providing information on vehicle specifications, including axle load limits. These resources may include vehicle data websites, forums, or government databases that compile and provide access to vehicle specifications and regulatory information. Conduct an internet search using relevant keywords to find reliable online sources that offer information on axle load limits for various types of vehicles.
When seeking information on axle load limits, it’s crucial to ensure that the information you obtain is accurate, up-to-date, and applicable to your specific vehicle and jurisdiction. Regulations and load limits can vary depending on the country, region, vehicle type, and other factors. Therefore, it is advisable to consult official sources or seek professional advice to ensure compliance with applicable regulations and ensure safe and legal operation of your vehicle.
Are there specific maintenance tips to extend the lifespan of my vehicle’s axles?
Maintaining the axles of your vehicle is crucial for ensuring their longevity, performance, and overall safety. Here are some specific maintenance tips to extend the lifespan of your vehicle’s axles:
- Regular Inspection:
- Lubrication:
- Seal Inspection and Replacement:
- Proper Loading and Towing:
- Driving Techniques:
- Regular Wheel Alignment:
- Proper Tire Inflation:
- Service Intervals:
Perform regular visual inspections of the axles to check for any signs of damage, leaks, or excessive wear. Look for cracks, bends, or rust on the axle housing, and inspect the axle shafts, seals, and boots. Early detection of issues can help prevent further damage and costly repairs.
Follow the manufacturer’s recommendations for axle lubrication. Proper lubrication helps reduce friction and wear on the axle components. Regularly check the axle’s lubricant level and quality, and replace it as necessary. Use the recommended lubricant type and viscosity for your specific axle.
Check the axle seals for any signs of leaks, such as fluid accumulation around the axle ends. Leaking seals can allow contaminants to enter the axle assembly, leading to premature wear and damage. Replace worn or damaged seals promptly to maintain proper lubrication and prevent contamination.
Ensure that you do not exceed the weight capacity of your vehicle’s axles. Overloading or towing beyond the recommended limits can put excessive stress on the axles, leading to premature wear or failure. Be mindful of the payload and towing capacity specified by the vehicle manufacturer.
Adopt proper driving techniques to minimize stress on the axles. Avoid sudden acceleration, aggressive cornering, and harsh braking, as these actions can subject the axles to excessive forces. Additionally, be cautious when driving over rough terrain or obstacles to prevent impacts that could damage the axles.
Maintain proper wheel alignment to prevent excessive strain on the axles. Misaligned wheels can put uneven loads on the axles, leading to accelerated wear. Regularly check and adjust the wheel alignment as per the manufacturer’s recommendations.
Ensure that your vehicle’s tires are properly inflated according to the recommended tire pressure. Underinflated or overinflated tires can affect the load distribution on the axles and increase the risk of axle damage. Regularly check and maintain the correct tire pressure.
Follow the recommended service intervals for your vehicle, which may include axle inspections, lubricant changes, and other maintenance tasks. Adhering to these intervals ensures that the axles are properly maintained and any potential issues are addressed in a timely manner.
It’s important to consult your vehicle’s owner’s manual for specific maintenance guidelines and intervals provided by the manufacturer. Additionally, if you notice any unusual noises, vibrations, or handling issues related to the axles, it is advisable to have your vehicle inspected by a qualified mechanic to identify and address any potential axle problems promptly.
Can you explain the importance of axle alignment for vehicle stability and handling?
Axle alignment plays a crucial role in ensuring vehicle stability and handling characteristics. Proper alignment of the axles is essential for maintaining optimal tire contact with the road surface, minimizing tire wear, maximizing traction, and promoting safe and predictable handling. Here are the key reasons why axle alignment is important:
- Tire Wear and Longevity:
- Optimal Traction:
- Steering Response and Stability:
- Reduced Rolling Resistance:
- Vehicle Safety:
Correct axle alignment helps distribute the vehicle’s weight evenly across all four tires. When the axles are properly aligned, the tires wear evenly, reducing the risk of premature tire wear and extending their lifespan. Misaligned axles can cause uneven tire wear patterns, such as excessive wear on the inner or outer edges of the tires, leading to the need for premature tire replacement.
Proper axle alignment ensures that the tires maintain optimal contact with the road surface. When the axles are aligned correctly, the tires can evenly distribute the driving forces, maximizing traction and grip. This is particularly important during acceleration, braking, and cornering, as proper alignment helps prevent tire slippage and improves overall vehicle stability.
Axle alignment directly affects steering response and stability. When the axles are properly aligned, the vehicle responds predictably to driver inputs, providing precise and accurate steering control. Misaligned axles can lead to steering inconsistencies, such as pulling to one side or requiring constant correction, compromising vehicle stability and handling.
Proper axle alignment helps reduce rolling resistance, which is the force required to move the vehicle forward. When the axles are aligned correctly, the tires roll smoothly and effortlessly, minimizing energy loss due to friction. This can contribute to improved fuel efficiency and reduced operating costs.
Correct axle alignment is crucial for ensuring vehicle safety. Misaligned axles can affect the vehicle’s stability, especially during emergency maneuvers or sudden lane changes. Proper alignment helps maintain the intended handling characteristics of the vehicle, reducing the risk of loss of control and improving overall safety.
To achieve proper axle alignment, several key parameters are considered, including camber, toe, and caster angles. Camber refers to the vertical tilt of the wheel when viewed from the front, toe refers to the angle of the wheels in relation to each other when viewed from above, and caster refers to the angle of the steering axis in relation to vertical when viewed from the side. These alignment angles are adjusted to meet the vehicle manufacturer’s specifications and ensure optimal performance.
It’s important to note that factors such as road conditions, driving habits, and vehicle modifications can affect axle alignment over time. Regular maintenance and periodic alignment checks are recommended to ensure that the axles remain properly aligned, promoting vehicle stability, handling, and safety.
editor by CX 2024-03-14
China Custom Front Right ISO, DIN Drive Shaft Price CV Joint Boot Kit with Free Design Custom
Product Description
ABS Ring Included: No
Axle Nut Locking Type: Self Lock
Axle Nut Supplied: Yes
Compressed Length: 21 1/4″
CV Axles Inboard Spline Count: 26
Emission Code : 1
Inboard Joint Type: Female
Input Shaft Connection Style: Spline
Input Shaft Spline Count: 26
Interchange Part Number: , GM-8047, 179047, GM-6120, GM6120, 9456N
Label Description – 80: New Constant Velocity Drive Axle
Length Measurement Method: Compressed
Life Cycle Status Code: 2
Life Cycle Status Description: Available to Order
Maximum Cases per Pallet Layer: 10
MSDS Required Flag: N
National Popularity Code : B
National Popularity Description: Next 20% of Product Group Sales Value
New or Remanufactured: New
Nut Head Size: 36mm Hex Head
Nut Length: OAH 20.8mm
Nut Locking Type: Self Lock
Nut Thread Size: M24 x 2.0
Other Part Number: 815-5270, GM-8232, 80-1507, , 80571
Outboard Joint Type: Male
Outboard Spline Count: 27
Output Shaft Connection Style: Spline
Output Shaft Spline Count: 27
Overall Length: 21 1/4″
Pallet Layer Maximum: 6
Product Condition: New
Product Description – Invoice – 40: CV Drive Axle New
Product Description – Long – 80: CV Drive Axle – Domestic New
Product Description – Short – 20: CV Drive Axle
Remanufactured Part: N
Spindle Nut Hex Head Size: 36mm
Spindle Nut Included: Yes
Spindle Nut Thread Size: M24 x 2.0
Drive Shaft | PATRON : PDS1507
- Fitting Position: Front Axle Right
REF NO.
FactoryNumber
GSP208050
OE Number
MakeNumber
GMC93720063
MakeNumber
GMC
MakeNumber
ISUZU
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 2 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 1 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 2 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 2 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 2 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.
China high quality Steel New Ccr or Private Label Drive Shaft Price Inner CV Joint near me shop
Product Description
ABS Ring Included: No
Axle Nut Locking Type: Self Lock
Axle Nut Supplied: Yes
Compressed Length: 21 1/4″
CV Axles Inboard Spline Count: 26
Emission Code : 1
Inboard Joint Type: Female
Input Shaft Connection Style: Spline
Input Shaft Spline Count: 26
Interchange Part Number: , GM-8047, 179047, GM-6120, GM6120, 9456N
Label Description – 80: New Constant Velocity Drive Axle
Length Measurement Method: Compressed
Life Cycle Status Code: 2
Life Cycle Status Description: Available to Order
Maximum Cases per Pallet Layer: 10
MSDS Required Flag: N
National Popularity Code : B
National Popularity Description: Next 20% of Product Group Sales Value
New or Remanufactured: New
Nut Head Size: 36mm Hex Head
Nut Length: OAH 20.8mm
Nut Locking Type: Self Lock
Nut Thread Size: M24 x 2.0
Other Part Number: 815-5270, GM-8232, 80-1507, , 80571
Outboard Joint Type: Male
Outboard Spline Count: 27
Output Shaft Connection Style: Spline
Output Shaft Spline Count: 27
Overall Length: 21 1/4″
Pallet Layer Maximum: 6
Product Condition: New
Product Description – Invoice – 40: CV Drive Axle New
Product Description – Long – 80: CV Drive Axle – Domestic New
Product Description – Short – 20: CV Drive Axle
Remanufactured Part: N
Spindle Nut Hex Head Size: 36mm
Spindle Nut Included: Yes
Spindle Nut Thread Size: M24 x 2.0
Drive Shaft | PATRON : PDS1507
- Fitting Position: Front Axle Right
REF NO.
FactoryNumber
GSP208050
OE Number
MakeNumber
GMC93720063
MakeNumber
GMC
MakeNumber
ISUZU
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 2 splines are coupled with no spline misalignment, the maximum tensile root stress shifts to the left by 5 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 50-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 4 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 3 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 2 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 2 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 3 factors. A failure mode is often defined as a non-linear distribution of stresses and strains.