Product Description

 High Torque with high strength and precision Ra 0.8 Finish Cold Rolling Shaft

With the development of the twin screw extruder towards high speed and high torque, the strength (especially the thermal strength) and precision of the twin screw extruder shaft are required higher. Through extensive research, the material we use Germany imported pre-hard alloy tool steel and the splines are formed with Europe imported CNC spline cold rolling processing equipment. After customer trial, products fully meet the performance and quality requirements of similar high-end products imported from abroad.

1. Shaft Range

Diameter: 35-120mm
Lenth: 500-14000mm

2. The advantages of cold rolling shaft compared with the traditional milling shaft

Using advanced cold rolling technology to replace the traditional milling to process splines is a qualitative leap in spline processing technology. It not only improves the processing accuracy and surface finish, but also greatly improves the mechanical properties of parts. After cold rolling, the strength of spline is much higher and reasonable fiber streamline distribution inside the parts can form compressive stress on the surface of parts and improve fatigue strength.
Through the test, the torque force of the shaft processed by this technology is increased by 25 ~ 30%, and the accuracy is increased by 2 levels, CZPT the national standard of 6 levels. In addition, reasonable cold rolling process can form compressive stress on the surface and improve the fatigue strength.

3. The torque of spline shaft:

4. Material choice:
 

Imported Material	WR Material	Domestic Material
1.Made in Germany 2.Made in Janpan	WR6 WR12 WR8 WR9 WR15A WR15E WR10 WR30	40CrNiMoa

5. Types of shaft:

Single keyway
Square keyslot
High torque key button
Dual keyslot
Involute inner spline
Round keyslot rectangle spline
Client requirements available

6. Equipment:
 

We have precision processing equipments to ensure the high-quality products.There are slender axle lathes, hydraulic straightening machines, precision cylindrical grindings, cold rolling equipment, CNC spline milling machines, aging CZPT and so on.

 

 

7. Testing Reports

We will send Inspection reports for every customer.
1). General Dimension Inspection Report,
2). Material certificate for customer.

8. Packing: we use wooden box to pack all the shafts

a. Rust-proof oil processing,
b. Oiled paper packages,
c. Bubble wrap package,
d. Special foam packaging,
e. Packing,
f. Sealing.

9. Our service:

24-hour Hotline
No matter when and where to call we can find our service to you.

Pre-sales Consultation
Whether you have any question can be solved through online communication.
Welcome your consultation.

After-sales Services
Having any questions about the products, please contact with us and we will help you deal with them the first time to your satisfaction.

 

 
    
  

 

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 2 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 2 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 3 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 2 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.