Bearings are corroded differently due to different use environments, because of different erosion methods. Of course, linear bearings can't escape the fate of being eroded. Let's talk about three ways that linear bearings are eroded.
1) Electric erosion
The electrical erosion of linear bearings refers to electric sparks generated between the friction surfaces of the linear bearings due to electric leakage of motors or electrical appliances, causing point-like scars on the friction surfaces. The characteristic is that the damage reciprocates on the harder journal surface.
2) Cavitation
Cavitation of linear bearings is a form of surface damage that occurs when a solid surface is in contact with liquid and moves relative to each other. 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 will collapse under the action of pressure. At the moment of collapse, great impact and high temperature will be generated. The solid surface is here. Under the repeated action of the impact force, the material will fatigue and fall off, causing small pits on the friction surface, which then develops into sponge-like scars. Cavitation often occurs in heavy-duty, high-speed sliding bearings with large changes in load and speed.
3) Fluid erosion
The fluid erosion of linear bearings refers to the fact that fluid violently impacting the solid surface will cause fluid erosion, causing dot-like scars to appear on the solid surface, and the damaged surface is relatively smooth.
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