Ball screw is a device that transmits motion and torque by rolling balls between threaded wheels and guide rails. The size of the ball is determined when designing the lead screw. If the ball is replaced at will, the original matching will be lost, which will affect the mechanical accuracy and service life. Not only that, the quality, shape and size of the ball need to be highly matched, and it will increase the difficulty of compensation after replacement and bring unpredictable consequences. Therefore, it is not recommended to replace the enlarged ball.

In addition, if you are very confident that you can control the risk of changing the ball at a very low level and have relevant technical support, you can consider changing the ball.