The Reason Why Unusual Noise From A Ball Screw During Operation?

Unusual noises during the operation of a ball screw can be caused by various factors. Here are some common causes:                  

1. Ball wear 

After prolonged use, the surface of the balls may flake off, affecting their smooth rolling on the track, which can cause vibrations and noise.

2.Clearance fit 

If the clearance between the nut and the screw shaft is too loose, it can cause play vibrations and abnormal noise during movement. 

ball screw

customized ball nut

square ball nut

3.Inconsistent bearing sizes

When replacing worn bearings, if the new and old bearings do not match in size, it may cause poor operation and noise.

4. Internal impurities

Impurities entering the interior of the nut or issues with the retainer (a device used for circulating balls) can also cause noise.

5.Friction noise

During high-speed movement, friction between the ball screws can also produce some noise, especially when the pitch is larger.

6.Insufficient lubrication 

Ball screws require proper lubrication. Insufficient lubrication or the use of unsuitable lubricants can increase friction between the balls and the screw shaft, causing noise. 

ball screw assembly

ball screw

customized ball screw

           
7.Bearing damage

If the bearings supporting the ball screw are damaged, it can also cause abnormal noise.         

8.Loose coupling

If the coupling between the motor and the lead screw is loose, it will cause vibrations and noise during transmission.

9.Improper installation 

Incorrect installation or securing methods can cause the ball screw to move unstably and produce unusual noises.   

10.Excessive speed

High rotational speeds can increase impact between the balls and the screw shaft, causing noise.

11. Environmental factors

Extreme environmental temperatures can affect the thermal expansion and contraction of ball screws, thereby producing noise.   

ball screw 

ball screw

ball screw

To address these issues, it is usually necessary to inspect the condition of the balls and lead screws, improve lubrication conditions, replace damaged parts, adjust installation and securing methods, and ensure that all connections are tight and appropriate.

Trapezoidal lead screw and ball screws have different structures, so the causes of unusual noises are also different. If you want to understand the reasons for unusual noises during trapezoidal lead screw movement, check out the next blog post.

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