Damaged condition of bearing cage: retaining wounds and deformed or damaged cage frames, wear, etc. Generally, bearings are lubricated with thin grease and oil mist, which have their own characteristics. However, in order to meet the working requirements of modern high-speed and high load work roller bearings, oil vapor lubrication can be considered to be the more suitable method. The bearing dealer spindle bearing is a single row angular contact ball bearing consisting of a solid inner ring, an outer ring, a ball, and a cage assembly with a solid window cage. They cannot be removed. These bearings can be open or sealed. The tolerance of the spindle bearings is limited. They are particularly suitable for bearing arrangements that require very high guidance and speed capabilities. They are particularly suitable for the bearing arrangement of shafts in machine tools. Impairment column. End face deformation. Penetrate a recessed surface. Thread through the guide surface.

Cause: Poor installation (non-linear bearing). Improper use. The torque load is large. Shock, vibration. Speed is too fast, acceleration and deceleration are fast. Poor lubrication. temperature rise.

Control: Inspection and installation method of bearing adapter sleeve manufacturer. Check load, rotation, and temperature conditions. Reduce vibration. Correct the holder's choice. Change the lubricant and lubrication method.

indentation

Damage state: Dents on the raceway or rotating surface when biting metal powder, foreign matter, etc. Due to the influence of installation and equal time, concave surfaces (Brinell hardness indentations) are formed at the intervals of the rolled body.

Cause: Foreign bodies such as metal powder engulf. 2. Impact when transportation or assembly is subjected to excessive load.

Measures: 1. Impact the shaft sleeve. 2. Improve the sealing device. III. Filter the lubricating oil. IV. Improve assembly and usage methods.

Pyriform pitting

Damage state: Pear shaped palm lines with a dark gloss produced on the raceway surface.

Reason: 1. Foreign objects bite during lubrication. Poor lubrication.

Measures: 1. Improve the sealing device. 2. Fully filter the oil. 3. Suitable lubricant.

abrasion

Damage condition: The so-called wear is caused by friction between the raceway surface or rolling surface, roller end face, collar surface, and cage concave surface.

Causes: 1. Development caused by invasion of foreign objects and corrosion. 2. Poor lubrication. 3. Slipping due to irregular movement of rolling objects

Measures: 1. Improvement of sealing device. 2. Cleaning of bearing box. 3. Fully filtered lubricant. 4. Check the lubricant and lubrication method. 5. Prevent nonlinearity.

Fretting wear

Damage condition: Slight sliding caused by the relative repetition of the contact surface between the wear and tear on the raceway surface and the contact part of the rolling element. Due to the occurrence of worn black and reddish brown powders, it is also known as frictional corrosion.

Reason: 1. Poor lubrication. 2. Small amplitude swing. III. Insufficient interference.

Measures: 1. Use appropriate lubricating oil. 2. Increase the preload. 3. Check for excess. 4. Apply lubricant to the surface

Peeling

Damage status: Black surface with slight wear, several small cracks up to 5 meters deep from the surface to the black surface, and large-scale small peeling (micro peeling).

Cause: Improper lubricant. Foreign matter enters the lubricant. Lubricants caused by poor surface roughness. Poor surface finish matching of rolling parts.

Measures: Select lubricants to improve the sealing device and improve the surface finish of the supporting rolling parts.

Card injury

Damage state: The so-called stuck injury refers to the surface damage caused by accumulated slight burns on the damaged part of the sliding surface. A linear wound in a circular direction on a sliding or rolling surface. A clip wound on the cycloid wound at the end of the roller near the collar at the end of the roller.

Cause: Excessive load, excessive preload, poor lubrication. Foreign matter bites into the inner ring and the outer ring inclines, causing the shaft to deflect.