Rolled Ball Screw

The ball screw is composed of a screw rod, a nut, a steel ball, a pre-compression piece, a steerage gear, and an anti-skid piece. Its characteristic is to convert rotary motion into linear motion, and the important significance of its development is to transform the bearing from sliding motion into rolling motion. Ball screws are broadly used in a variety industrial tools and precision instruments because of their low frictional resistance. Transmission factors regularly used in computer equipment and precision machinery, whose important feature is to convert rotary movement into linear motion, or the rotor into axial repetitive force, and have the traits of high precision, reversibility, and high efficiency. Now we ordinarily introduce the kind of ball screws .

Description

Ball screws and lead screws are mechanical linear actuators that are commonly used to translate rotary motion into linear motion and are in many instances used in CNC machines.

All screws serve the same motive of altering rotary motion into linear motion, they have wonderful variations in their design, performance, and suitability for different types of applications.

Ball screws employ recirculating ball bearings to limit friction and enlarge efficiency, whereas lead screws make use of helical threads and a nut to produce linear movement.

Lead screws are metallic bars with threads as that of a traditional screw, and the relative action between the screw and nut reasons the linear motion of the latter.