Ball screws are now widely used in factory equipment. Today, let's briefly talk about what technical requirements are generally required for ball screws? There are mainly the following aspects:
1. Geometric accuracy, including travel deviation inspection, runout inspection, and position tolerance inspection.
The stroke deviation includes the target stroke tolerance, the effective stroke compensation value, the amount of change within the effective stroke, and the stroke deviation within one revolution. The runout deviation includes the radial runout of the outer diameter of the thread relative to the axis, the journal runout, the shoulder round runout, and the circular runout of the mounting end with the nut preload facing the axis.
2. Materials and heat treatment.
3. Preload, the size of the pretension load.
The ball screw is produced by a professional manufacturer. If there is no special requirement, only the accuracy grade and geometric dimensions can be given.
The composition of the ball screw: It is mainly composed of screw, ball screw nut, ball and circulator, labyrinth seal, oil hole, etc. Working principle: The screw and nut are processed with arc spiral grooves. When they are fitted together, a spiral raceway is formed, and the raceway is filled with balls. The ball rolls along the raceway and circulates repeatedly through the circulator. Both ends of the circulator also act as stoppers to prevent the balls from falling out along the raceway.
Ball screw structure: The ball screw nut pair is a commonly used transmission device for converting rotary motion into linear motion. It replaces the sliding in the screw nut pair with the rolling of the ball, with low friction and good performance.
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