Complaint
Domestic C7 rolled ball screw shaft, C5 ground ball screw shaft, Ball screw nut
Lishui Wangong Precision Machinery Co., Ltd.
1,Intruduction
High precision low noise ERSK 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.
2, Ball screw feature
High Reliability
TBI MOTION or ERSK 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 ERSK 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 ERSK ball screws have gothic arch 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.
3, All kinds of ball srew series
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.
| SFU series | SFS/SFA series | SFI series |
| DFU series | SFY series | SFK series |
| SCI series | Ball screw set | C5 ground ball screw series |
4, Ball screw Specification
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 | |||
| Brand name | ERSK, (they are able to interchange into TaiWan TBI ball screw and nut) |
| Product name | C5 ground ball screw, C7 rolled ball screw |
| Model no. | SFU/SFNU/SFS/SFA/SFI/SFY/DFU/SFK/SCI series |
| Material | S55C material for ball screw shaft, 20CrMo material for ball screw nut |
| Service | after-sale service and technical assistance as per customer's requirement and needs. Customers are always given quickly support. |
| Length | Max:6000mm, other length as your requirement |
| Delivery time | Base on customer required quantity,by negotiated |
| Products packing | Plastic bag+box case or wooden case, or according to customer's requestment |
| Sample | Sample order could be available |
| Payment terms | T/t or L/C are available for large orders, Paypal and West Union for small orders |
| Shipping method | DHL,UPS,TNT,FEDEX,EMS,Airfreight and by sea, By negotiated |
| Quality | ISO9001-2008 |
5, We can machinize the ball screw shaft according to the drawings
6, Data sheet
ERSK manufacturer main products
As a distinguished high-tech enterprise, we seamlessly integrate research and development, production, sales, and service. We have successfully incorporated advanced equipment and cutting-edge technologies from renowned countries like Germany, Japan, and Taiwan. Our commitment to innovation has led to the acquisition of multiple product design patents, and we proudly adhere to ISO9001 certification standards.
