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Ball Screw SFJ Ball Screw Nut 2000mm stainless steel

Ball Screw SFJ Ball Screw Nut 2000mm stainless steel

A ball screw is a device that converts rotary motion into linear motion and is commonly used in industrial machinery. It consists of a ball thread and a ball recirculating track, and the conversion of rotational motion and linear motion is realized by rolling the balls between the ball thread and the ball recirculating track

 

 

 

Product name Ball screw
Model Number SFJ
Brand Name SHUNTAI
Material  GCr15 Bearing steel, Steel, Bronze
Manufacturing Process Rolled screw, ground screw
Feature Long Operating Life
Delivery 7 Days
Shipping Port  Shanghai

 

Please watch our ball screw video
 
 
Please view our ball screw data sheet
 
Compared to traditional sliding lead screws, ball screws achieve a comprehensive leap in performance by replacing sliding friction with rolling friction. Their core advantages lie in these four areas:
 
1. Ultra-high transmission efficiency: energy-saving and effort-reducing
Sliding lead screws have a transmission efficiency of only 30%–50%, with most power lost to friction; in contrast, ball screws boast an efficiency exceeding 90%, resulting in negligible power waste. Under the same load, driving a ball screw requires less motor power, thereby saving energy and reducing overall equipment power consumption.
 
2. Superior precision and zero-error positioning
As precision transmission components, ball screws offer accuracy grades suitable for applications ranging from general automation to ultra-precision machining. They feature minimal lead error and micron-level repeatability, enabling precise linear displacement control. They are essential for ensuring accurate machining and positioning in CNC machine tools, precision inspection instruments, and semiconductor equipment.
 
3. Low friction, long service life, and smooth operation
Rolling friction has an extremely low coefficient, resulting in virtually no resistance or sticking during operation; unlike sliding lead screws, they do not suffer from wear-induced jamming over long-term use. With proper lubrication and dust-proof design, ball screws offer a service life several times longer than traditional sliding lead screws, significantly lowering equipment maintenance costs.
 
4. Preload capability and zero backlash for stable bidirectional transmission
Through a preload design, ball screws completely eliminate thread backlash. This ensures no reversal error when switching between forward and reverse rotation, resulting in rapid transmission response. Whether performing high-speed feed or low-speed fine adjustment, they maintain smooth, vibration-free operation, making them ideal for automation equipment requiring frequent directional changes.
 
 
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