As the key component of the special bearing for the main shaft, the cage plays a very important role in the bearing. When the bearing is used, the cage is often damaged, which will seriously harm the use effect of the bearing and even cause the bearing to be completely damaged. Unusable, the following share some common damage conditions of related spindle special bearing cages. The common damage conditions of the bearing cage for the main shaft are: 1. The overall or partial wear and damage of the cage; 2. The breakage of the column; 3. The deformation of the end face; 4. The wear of the depression; 5. The guide surface Wear; Common factors that cause damage to the special bearing cage for the main shaft are: 1. Poor assembly (non-parallel linearity of the bearing); 2. Poor application; 3. Large torque load; 4. Impact and vibration; 5. Speed ​​ratio Too large, rapid acceleration and deceleration; 6. Poor lubrication; 7. Temperature rise. Common countermeasures for the damage of the special bearing cage for the spindle: 1. Check the installation method; 2. Check the load, rotation and temperature standards; 3. Reduce vibration; 4. Correct the selection of the cage; 5. Change the evaluation method of lubricating fluid and lubricator. The torque is accurate, in order to turn stable!