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! ! !
Standard Length Splined Shafts
Standard Length Splined Shafts are made from Mild Steel and are perfect for most repair jobs, custom machinery building, and many other applications. All stock splined shafts are 2-3/4 inches in length, and full splines are available in any length, with additional materials and working lengths available upon request and quotation. CZPT Manufacturing Company is proud to offer these standard length shafts.
Disc brake mounting interfaces that are splined
There are 2 common disc brake mounting interfaces, splined and center lock. Disc brakes with splined interfaces are more common. They are usually easier to install. The center lock system requires a tool to remove the locking ring on the disc hub. Six-bolt rotors are easier to install and require only 6 bolts. The center lock system is commonly used with performance road bikes.
Post mount disc brakes require a post mount adapter, while flat mount disc brakes do not. Post mount adapters are more common and are used for carbon mountain bikes, while flat mount interfaces are becoming the norm on road and gravel bikes. All disc brake adapters are adjustable for rotor size, though. Road bikes usually use 160mm rotors while mountain bikes use rotors that are 180mm or 200mm.
Disc brake mounting interfaces that are helical splined
A helical splined disc brake mounting interface is designed with a splined connection between the hub and brake disc. This splined connection allows for a relatively large amount of radial and rotational displacement between the disc and hub. A loosely splined interface can cause a rattling noise due to the movement of the disc in relation to the hub.
The splines on the brake disc and hub are connected via an air gap. The air gap helps reduce heat conduction from the brake disc to the hub. The present invention addresses problems of noise, heat, and retraction of brake discs at the release of the brake. It also addresses issues with skewing and dragging. If you’re unsure whether this type of mounting interface is right for you, consult your mechanic.
Disc brake mounting interfaces that are helix-splined may be used in conjunction with other components of a wheel. They are particularly useful in disc brake mounting interfaces for hub-to-hub assemblies. The spacer elements, which are preferably located circumferentially, provide substantially the same function no matter how the brake disc rotates. Preferably, 3 spacer elements are located around the brake disc. Each of these spacer elements has equal clearance between the splines of the brake disc and the hub.
Spacer elements 6 include a helical spring portion 6.1 and extensions in tangential directions that terminate in hooks 6.4. These hooks abut against the brake disc 1 in both directions. The helical spring portion 5.1 and 6.1 have stiffness enough to absorb radial impacts. The spacer elements are arranged around the circumference of the intermeshing zone.
A helical splined disc mount includes a stabilizing element formed as a helical spring. The helical spring extends to the disc’s splines and teeth. The ends of the extension extend in opposite directions, while brackets at each end engage with the disc’s splines and teeth. This stabilizing element is positioned axially over the disc’s width.
Helical splined disc brake mounting interfaces are popular in bicycles and road bicycles. They’re a reliable, durable way to mount your brakes. Splines are widely used in aerospace, and have a higher fatigue life and reliability. The interfaces between the splined disc brake and BB spindle are made from aluminum and acetate.
As the splined hub mounts the disc in a helical fashion, the spring wire and disc 2 will be positioned in close contact. As the spring wire contacts the disc, it creates friction forces that are evenly distributed throughout the disc. This allows for a wide range of axial motion. Disc brake mounting interfaces that are helical splined have higher strength and stiffness than their counterparts.
Disc brake mounting interfaces that are helically splined can have a wide range of splined surfaces. The splined surfaces are the most common type of disc brake mounting interfaces. They are typically made of stainless steel or aluminum and can be used for a variety of applications. However, a splined disc mount will not support a disc with an oversized brake caliper.
