Product Description
Product Description
DFU series Domestic Chinese ball screw shaft with nut details
High precision low noise CZPT ball screw
Ball screw is made of screw, nut and ball. The function is to turn the rotary motion into liner motion, which is a further extension and development of ball screw. The significance of this development is to move into a rolling bearing from sliding action; With little friction, ball screws are widely used in various industrial equipment and precision instruments.
Products overview
High Reliability
TBI MOTION or CZPT ball screw has very stringent 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 ball screws is vastly superior to conventional screws. The torque required is less than 30%. Linear motion can be easily changed from rotary motion.
High Rigidity and Preload
When axial play is minimized in conventional screw-nut assemblies, the actuating torque becomes excessive and the operation is not smooth. The axial play in TBI MOTION or CZPT precision ball screws may be reduced to zero by preloading and a light smooth operation is still possible. herefore, both low torque and high rigidity can be obtained simultaneously.TBI MOTION or CZPT ball screws have gothic CZPT groove profiles which allow these conditions to be achieved.
Circulation Method
Ball return tube method.(V,E,S,Y type);Ball defelector method.(I,U,M,K type)
High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience,have resulted in the most durable ball screws manufactured.
Ball screw size are the same as ZheJiang TBI ball screw shafts and nuts, they can be interchanged into each other
Detailed Photos
We are CZPT to machinize the end sides of ball screw shafts according to your requirements
There are many parts what can be matched into the ball screw, Please
choose what you need:
ERSK Ball Screw and it’s parts
((( ball screw shaft, ball screw Nut, Nut housing, Coupling, End support unit )))
There are many different series of ball screw shaft with nut, like SFU series, SFS series, SFI series, SFY series, DFU series, SFUL series, SFK series.Each series has its own characteristics, Let’s look at the difference in appearance and characteristics.
Ball screw Feature
1. Cold rolled ball screw;
2. Gcr15 material;
3. High-speed operation
4. C5 C7 C10 precision;
5. No gap and preloading
6. Quality as good as TBI brand is high precision, long life use.
7. Pay more attention to before-sale, in-sale, after -sales service.
8. Manufacturer with large stock & short delivery
| Ball Screw Features |
|||||
| Item | Material | Heat Treatment |
Hardness | Accurancy | Preload |
| Ball screw shaft | SCM450 S55C CF53 |
Induction Heating |
HRC58-62 | C5:0.018mm C7:0.05mm C10:0.21mm |
P1:Zero P2:Light P3:Medium P4:Heavy |
| Ball screw nut | SCM415 20CrMo |
Carbonizing Hardening |
HRC58-62 | C5:0.018mm | P1:Zero P2:Light P3:Medium P4:Heavy |
| Steel balls | SUJ2 GCr15 |
HRC58-62 | |||
Cold Rolled Ball Screw Application:
1. Engraving machines; 2. High speed CNC machinery;
4. Auto-machinery. 3. Semi-Conductor equipment;
5. Machine tools; 6. Industrial Machinery;
7. Printing machine; 8. Paper-processing machine;
9. Textiles machine; 10. Electronic machinery;
11. Transport machinery; 12. Robot etc.
Rolled ball screws can not only be used in above general machinery, but also in many advanced industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is more eco-friendly than hydraulic pump system. Nowadays it’s applied to electric vehicles, solar power plants, railway devices and many medical and leisure equipments.
Installation Instructions
The way to assemble the ball screw nut in the ball screw shaft
Related products
Our service
Over Service and Our principle:
Quality first, credibility is the key, the price followed
Our Advantages
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
HangZhou Wangong Precision Machinery Co., Ltd’s CZPT brand is the leading brand of rolled ball screw and linear CZPT in China. We design and produce our own rolling tools, and we can produce all kinds of screws and nuts or linear CZPT upon customer’s requests.
We produce cold rolled ball screw in large stock, Specification include: 1204, 1604, 1605, 1610, 2004, 2005, 2571, 2505, 2510, 3205, 3210, 4005, 4571, 4571, 5005, 5571, 6310, etc. (Having all kinds of models) the max length 6000mm, we suggest customer accept 3000mm, it’s easy packing, easy and safe for transport.
Related Products:
Ball screw end support
Nut bracket
Coupling
All those relative products have large stock.
Frequently Asked Questions
1. What’s your main products?
Cold rolled ball screws, ball screw support units, Linear CZPT rails, Linear motion ball slide bearing, Cylinder rails, Linear shaft, Couplings, etc.
2. How can I get a sample to check your quality?
After price confirmation, sample order is available to check our quality.
3. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority.
4. Can you do ball screw end machine processing?
Yes. We have a professional team having rich experience in end machine processing, please provide us the drawing with the tolerance and we will help you to make the ball screws depending on the drawing.
5. How long is the lead time for mass production?
Honestly, it depends on the order quantity and the season you place the order. The lead time of MOQ is about 7 to 15 days. Generally speaking, we suggest that you start inquiry 2 months before the date you would like to get the products at your country.
Get more detailed information! ! !
Inquiry with us, Now! ! !
We will reply within 24 Hours! ! !
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.
