During operation, the screw jack may exhibit vibration, usually presenting the following situations:

The pitch of the screw lifting jack is uneven.

2. The worm gear of the screw jack exhibits uneven division of the worm head.

3. Purchased substandard plain bearing and cone bearing products on the market, which did not meet quality standards.

4. The upper and lower protective sleeves of the ball screw are too tight, causing a vibration phenomenon.

5. When the screw's load-bearing capacity is less than the actual load value, the screw may bend under the weight of the load, resulting in a vibration.