1. The slewing bearing is not sensitive to rolling.

(1) Newly purchased products are not sensitive to idling.

(2) The work after installation is not sensitive.

(3) The work is not sensitive during use.

2. Abnormal noise

(1) The slight abnormal noise when the new product is idling will generally disappear naturally after rolling for dozens of laps.

(2) After the assembly, there is abnormal noise in the trial operation.