What are the causes of damage to the tractor bearing 22205 bearing?

Regarding the damage status of the tractor bearing 22205 bearing, such as: the rib of the roller bearing ring, it can be considered as the cause, insufficient lubricant, unsuitable, defective oil supply and discharge structure, foreign matter intrusion, bearing installation error, shaft If the deflection is too large, there will also be coincidence of these reasons. Today I will introduce to you as follows:

1. Cavitation

Cavitation of tractor bearing 22205 bearing is a form of surface damage that occurs when a solid surface is in contact with a liquid and moves relative to it. When the lubricating oil is in the low pressure area of ​​the oil film, bubbles will be formed in the oil. After the bubbles move to the high pressure area, the bubbles collapse under the action of pressure. At the moment of collapse, a great impact force and high temperature are generated, and the solid surface is in this area. Under the repeated action of the impact force, the material will fatigue and fall off, causing small pits on the friction surface, which will then develop into spongy scars. Cavitation often occurs in sliding bearings with heavy loads, high speeds, and large changes in load and speed;

2. Fluid erosion

The fluid erosion of tractor bearing 22205 bearing refers to the fluid erosion caused by the violent impact of the fluid on the solid surface, causing point-like scars to appear on the solid surface, and the surface of this damage is relatively smooth;

3. Electric erosion

The electrical erosion of tractor bearing 22205 bearing refers to the electric sparks generated between the friction surfaces of the bearing due to the leakage of electric motors or electrical appliances, causing point-shaped scars on the friction surfaces, which are characterized by the reciprocation of the damage on the surface of the hard journal.

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