What causes damage to the retainer of the turntable bearing

2019-09-20

　　Slewing bearingIt is not easy to distinguish the damage of the persister in the middle, and the failure problem is not obvious in the use in time. Today, the editor will talk about the reasons for the damage of the slewing bearing retainer, and conduct a comprehensive analysis.

Reasons for damage to the slewing bearing holder:

1. Vibration

When the bearing is under vibration, the strength inside the bearing may cause fatigue cracks in the retainer. Gradually, this crack will cause the stick to break. To prevent this phenomenon, bearings equipped with special retainers can be used.

2. Speed ​​exceeds design requirements

If the bearing is operated at a speed beyond the acceptable speed of the holding material, the inertial force will cause the holding device to break. There are high-speed bearings [interleaved roller bearings] for this occasion.

3. Wear

Improper lubrication or strong foreign matter will wear the bearing holder. Avoid sliding friction when rolling bearings are running. However, the sliding contact between the roller and the holder is usually impossible to eliminate, so if the lubrication is poor, the holder is a worn part in the first battle. And the holder is made of soft material, so it wears out very quickly. The gradual gap of the holder will make the holder break quickly. The same happens when solid particles penetrate the bearing.

4. Foreign body stuck

The broken parts or particles may get stuck between the holder and the roller. Prevent the rolling member from rolling. This can also cause the stick to break. As long as it can prevent large foreign bodies from invading the bearing, the retainer can be safe even under heavy loads.

The above is the reason for the damage of the slewing bearing holder. If the bearing is in the above-mentioned condition during use, a comprehensive analysis can be carried out according to the fault to find the problem and deal with the bearing problem.