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"Ball screw is made of screw, nut and ball. it's 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 slidingaction. with little friction, ball screws are widely used in various industrial equipment and precision instruments.Applications:
1. Engraving machines;
2. High speed CNC machinery;
3.Semi-Conductor equipment;
4. Auto-machinery. http://www.sinier.cc/"
