Introduction and advantages of hollow ball screw

Ball screw is an important precision component in machine tools. The screw of ball screw can be solid or hollow, and solid ball screw is the most common type. Therefore, today we will briefly introduce the uncommon hollow ball screw.

Hollow ball screw is suitable for high-precision machine tools. Hollow ball screw can cooperate well with the high-speed operation of the conveying mechanism, especially when high-precision positioning is required. Due to the heat generated during movement, thermal expansion and contraction can cause the ball screw to expand. In order to prevent this change in the ball screw, hollow ball screw has emerged. Hollow ball screw, because it is hollow, blocks heat conduction and achieves cooling effect. Moreover, due to the hollow of the screw shaft and standardized processing at both ends of the shaft, it is an effective method to reduce thermal expansion.

The hollow shaft ball screw has the following advantages:

1. Stable positioning accuracy

Thermal expansion can lead to a decrease in the accuracy of the ball screw. As the hollow shaft suppresses the thermal expansion caused by temperature rise, the accuracy of the ball screw is stable.

2. Effectively preventing displacement of various parts

By reducing the occurrence of thermal expansion, the displacement of the ball screw support shaft and base is controlled within the minimum range. At the same time, the cooling effect of the hollow shaft effectively blocks heat conduction to other parts, thereby avoiding deformation of the workbench due to heat.

3. Effectively shorten preheating time

The cooling effect of the hollow shaft can reduce the amplitude of temperature rise, thereby shortening the preheating time of the equipment.

4. Effectively maintaining the lubrication performance of ball screws

Because it avoids the heating of the ball screw and slows down the rate of lubricating oil deterioration, it can better maintain the effectiveness of the lubricating oil.