Introduction
Industrial ball screws SFS are precision internal circulation transmission components, featuring zero backlash, high efficiency, high rigidity, and low noise. They have a compact structure, strong durability, a wide range of models, and support customization.
Product Parameters
We offer a full range of ball screws. If you need customized products, please contact us.
|
d：Shaft diameter |
I：Lead |
Da：Bead diameter |
k:Rigidity |
n:Number of steel ball turns |
|||||||||||
|
ca:Basic dynamic load rating(kgf) |
coa：Basic static rated load(kgf) |
unit：mm |
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|
Model |
d |
l |
Da |
Nut size |
Ca |
C0a |
k |
||||||||
|
D |
A |
B |
L |
W |
H |
X |
Q |
n |
|||||||
|
SFS01205-2.8 |
12 |
5 |
2.5 |
24 |
40 |
10 |
48.5 |
32 |
30 |
4.5 |
2.8×1 |
661 |
1316 |
19 |
|
|
SFS01210-2.8 |
10 |
2.5 |
24 |
40 |
10 |
33 |
32 |
30 |
4.5 |
2.8×1 |
642 |
1287 |
19 |
||
|
SFS01605-3.8 |
15 |
5 |
2.778 |
28 |
48 |
10 |
38 |
38 |
40 |
5.5 |
M6 |
3.8×1 |
1112 |
2507 |
30 |
|
SFS01610-2.8 |
10 |
2.778 |
28 |
48 |
10 |
47 |
38 |
40 |
5.5 |
M6 |
2.8×1 |
859 |
1821 |
23 |
|
|
SFS01616-1.8 |
10 |
2.778 |
28 |
48 |
10 |
45 |
38 |
40 |
5.5 |
M6 |
1.8×1 |
532 |
1137 |
14 |
|
|
SFS01616-2.8 |
16 |
2.778 |
28 |
48 |
10 |
61 |
38 |
40 |
5.5 |
M6 |
2.8×1 |
808 |
1769 |
22 |
|
|
SFS01620-1.8 |
20 |
2.778 |
28 |
48 |
10 |
57 |
38 |
40 |
5.5 |
M6 |
1.8×1 |
554 |
1170 |
14 |
|
|
SFS02005-3.8 |
20 |
5 |
3.175 |
36 |
58 |
10 |
40 |
47 |
44 |
6.6 |
M6 |
3.8×1 |
1484 |
3881 |
37 |
|
SFS02010-3.8 |
10 |
3.175 |
36 |
58 |
10 |
60 |
47 |
44 |
6.6 |
M6 |
3.8×1 |
1516 |
3633 |
40 |
|
|
SFS02020-1.8 |
20 |
3.175 |
36 |
58 |
10 |
57 |
47 |
44 |
6.6 |
M6 |
1.8×1 |
764 |
1758 |
19 |
|
|
SFS02020-2.8 |
20 |
3.175 |
36 |
58 |
10 |
77 |
47 |
44 |
6.6 |
M6 |
2.8×1 |
1110 |
2758 |
29 |
|
|
SFS02505-3.8 |
25 |
5 |
3.175 |
40 |
62 |
10 |
40 |
51 |
48 |
6.6 |
M6 |
3.8×1 |
1658 |
4634 |
43 |
|
SFS02510-3.8 |
10 |
3.175 |
40 |
62 |
12 |
62 |
51 |
48 |
6.6 |
M6 |
3.8×1 |
1638 |
4633 |
45 |
|
|
SFS02525-1.8 |
25 |
3.175 |
40 |
62 |
12 |
70 |
51 |
48 |
6.6 |
M6 |
1.8×1 |
843 |
2199 |
22 |
|
|
SFS02525-2.8 |
25 |
3.175 |
40 |
62 |
12 |
95 |
51 |
48 |
6.6 |
M6 |
2.8×1 |
1239 |
3421 |
34 |
|
|
SFS03205-3.8 |
32 |
32 |
3.175 |
50 |
80 |
12 |
42 |
65 |
62 |
9 |
M6 |
3.8×1 |
1332 |
6021 |
51 |
|
SFS03210-3.8 |
31 |
10 |
3.969 |
50 |
80 |
13 |
62 |
65 |
62 |
9 |
M6 |
3.8×1 |
2460 |
7255 |
55 |
|
SFS03220-2.8 |
20 |
3.969 |
50 |
80 |
12 |
80 |
65 |
62 |
9 |
M6 |
2.8×1 |
1907 |
5482 |
43 |
|
|
SFS03232-1.8 |
32 |
3.969 |
50 |
80 |
13 |
84 |
65 |
62 |
9 |
M6 |
1.8×1 |
1257 |
3426 |
27 |
|
|
SFS03232-2.8 |
32 |
3.969 |
50 |
80 |
13 |
116 |
65 |
62 |
9 |
M6 |
2.8×1 |
1838 |
5329 |
42 |
|
|
SFS04005-3.8 |
40 |
5 |
3.175 |
63 |
93 |
15 |
45 |
78 |
70 |
9 |
M8 |
3.8×1 |
2018 |
7589 |
60 |
|
SFS04010-3.8 |
38 |
10 |
6.35 |
63 |
93 |
14 |
62 |
78 |
70 |
9 |
M8 |
3.8×1 |
5035 |
13943 |
67 |
|
SFS04020-2.8 |
20 |
6.35 |
63 |
93 |
14 |
83 |
78 |
70 |
9 |
M8 |
2.8×1 |
3599 |
10715 |
54 |
|
|
SFS04040-1.8 |
40 |
6.35 |
63 |
93 |
15 |
105 |
78 |
70 |
9 |
M8 |
1.8×1 |
2585 |
6648 |
34 |
|
|
SFS04040-2.8 |
40 |
6.35 |
63 |
93 |
15 |
145 |
78 |
70 |
9 |
M8 |
2.8×1 |
3707 |
10341 |
52 |
|
|
SFS05005-3.8 |
50 |
5 |
3.175 |
75 |
110 |
15 |
45 |
93 |
85 |
11 |
M8 |
3.8×1 |
2280 |
9542 |
68 |
|
SFS05010-3.8 |
48 |
10 |
6.35 |
75 |
110 |
18 |
68 |
93 |
85 |
11 |
M8 |
3.8×1 |
5638 |
17852 |
79 |
|
SFS05020-3.8 |
20 |
6.35 |
75 |
110 |
18 |
108 |
93 |
85 |
11 |
M8 |
3.8×1 |
5749 |
18485 |
87 |
|
|
SFS05050-1.8 |
50 |
6.35 |
75 |
110 |
18 |
125 |
93 |
85 |
11 |
M8 |
1.8×1 |
2946 |
8749 |
42 |
|
|
SFS05050-2.8 |
50 |
6.35 |
75 |
110 |
18 |
175 |
93 |
85 |
11 |
M8 |
2.8×1 |
4308 |
13610 |
65 |
|
Industrial Ball Screw SFS Core Advantages:
1. Industrial ball screws have extremely high transmission efficiency, with a friction coefficient of only 0.001~0.005 and a transmission efficiency of 90%~98%. Taking the SFU1605 model as an example, its rated transmission efficiency is 95%, which can reduce the power demand of the drive motor by more than 30% and is suitable for long-term continuous operation.
2. The positioning accuracy is outstanding. Industrial-grade products have a positioning accuracy of ±0.001~±0.01mm/300mm and a repeat positioning accuracy of ±0.0005~±0.002mm. Zero-backlash transmission can be achieved through double-nut preloading. For example, the 4010 model has a positioning accuracy of ±0.002mm/300mm, meeting the needs of precision machining.
3.It has a long service life and low maintenance cost. The balls are made of SUJ2 bearing steel, with a contact stress of 2000~3000MPa and a rated service life of 10000~20000 hours. Lubrication and maintenance only need to be performed every 6 months, which greatly reduces downtime costs.
4. It has strong bearing rigidity and wide adaptability. The axial rated dynamic load ranges from 5kN to 500kN. After preloading, the rigidity can be increased by 30%~50%, and the high-speed linear speed can reach 1~10m/s. It can transmit bidirectionally and is widely used in machine tools, robots and other equipment.
Applications:
Widely used in CNC machine tools (CNC machining centers, milling machines, grinding machines), industrial automation equipment (robot joints, linear modules, automated conveyor lines), precision tool machines (EDM machines, wire cutting machines), semiconductor and electronic equipment (chip packaging equipment, PCB drilling machines), medical equipment (precision testing instruments, surgical instruments), new energy equipment (lithium battery electrode cutting machines, photovoltaic module layout equipment), printing and textile machinery, and other fields.
Service Model
Standard Product Supply:
Offers in-stock products with delivery within 3-7 days;
Custom Solutions:
From requirement communication → solution design → sample testing → mass production, the entire process is supported by a dedicated technical contact;
After-Sales Support:
Provides product installation guidance, a 1-year warranty (excluding human-caused damage), and fast response to malfunctions.
Our Factory
Xuxin Automation: Your Premier One-Stop Manufacturer for High-Precision Motion Components
we specialize in the R&D and manufacturing of custom non-standard lead screws and nuts. With our 13,000 m² state-of-the-art facility, we deliver highly reliable industrial automation solutions tailored to your exacting requirements.
Production Area
Advanced Equipment
Experienced Team
Annual Output
Why Choose Us?
Exceptional Non-Standard Customization Capabilities
In-house R&D: Our professional engineering team possesses decades of deep-seated expertise in the lead screw and nut industry.
On-Demand Development: Whether you require specialized leads, unique materials, or complex structures, we provide bespoke manufacturing based on your technical drawings (PDF, CAD, or 3D models).
Rigorous Quality Control & Manufacturing
High-Precision Machining: Leveraging our fleet of 80 CNC machines and precision grinding centers, we ensure every component achieves micron-level accuracy.
Full Supply Chain Integration: From raw material processing and heat treatment to precision grinding and final inspection, the entire process is completed in-house. This end-to-end control guarantees stable lead times and uncompromising quality.
FAQ
1. Q: What is the core difference between a ball screw and a regular sliding screw?
A: The core difference lies in the transmission method. A ball screw relies on balls rolling in the raceway for transmission, converting sliding friction into rolling friction, achieving a transmission efficiency of over 90%, with high precision and low wear. A regular sliding screw has surface-contact sliding friction, with an efficiency of only 30%-50%, is prone to wear, and its precision decreases quickly.
2. Q: Why doesn't a ball screw have self-locking capability? What can be done about it?
A: Because the rolling friction of the balls is very small, a vertically installed ball screw will slide down under load after power is cut off and has no self-locking capability. The solution is to pair it with a brake motor or install an external brake to prevent the risk of falling in vertical lifting equipment.
3. Q: How are the accuracy grades of ball screws classified? Which grades are suitable for which applications?
A: Accuracy grades are commonly classified from high to low as C0 - C10, with smaller numbers indicating higher precision. C5 and above are suitable for high-precision equipment such as CNC machines and laser measuring instruments; C7 meets the needs of general automation equipment; C10 is mostly used for conveying or simple lifting mechanisms where high precision is not required.
4. Q: Do you provide samples? Are they free?
A: If the sample value is low, we provide free samples, but shipping costs will be charged. For high-value samples, a sample fee is required.
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