Due to the different service environment, the performance of bearing erosion is also different, because the erosion mode is different. Of course, linear bearings cannot escape the fate of being eroded. Here are three ways in which linear bearings are eroded.

1）电侵蚀

1) Electric erosion

直线轴承的电侵蚀是指由于电机或电器漏电，在直线轴承摩擦表面间产生电火花，在摩擦表面上造成点状伤痕，其特征是损伤往复出现在较硬的轴颈表面上。

The electric erosion of linear bearing refers to the electric spark generated between the friction surfaces of linear bearing due to electric leakage of motor or electrical appliances, resulting in point scars on the friction surface. Its characteristic is that the damage occurs on the hard journal surface repeatedly.

2）气蚀

2) Cavitation

直线轴承的气蚀是固体表面与液体接触并作相对运动时所产生的表面损伤形式。当润滑油在油膜低压区时，油中会形成气泡，气泡运动到高压区后，在压力作用下气泡溃灭，在溃灭的瞬间产生极大的冲击力和高的温度，固体表面在这冲击力的反复作用下，材料发生疲劳脱落，使摩擦表面出现小凹坑，进而发展成海绵状伤痕。重载、高速，且载荷和速度变化较大的滑动轴承中，常发生气蚀。

Cavitation erosion of linear bearing is the form of surface damage caused by the contact and relative movement between solid surface and liquid. When the lubricating oil is in the low-pressure area of the oil film, bubbles will form in the oil. After the bubbles move to the high-pressure area, the bubbles collapse under the action of pressure, resulting in great impact force and high temperature at the moment of collapse. Under the repeated action of this impact force, the material will fall off fatigue, resulting in small pits on the friction surface, and then develop into sponge scars. Cavitation often occurs in sliding bearings with heavy load, high speed and large changes in load and speed.

3）流体侵蚀

3) Fluid erosion

直线轴承的流体侵蚀是指流体激烈地冲击固体表面会造成流体侵蚀，使固体表面上出现点状伤痕，这种损伤的表面较光滑。

The fluid erosion of linear bearing means that the intense impact of fluid on the solid surface will cause fluid erosion, resulting in point scars on the solid surface, and the damaged surface is smooth.