Damage several performance aligning roller bearings

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Injury state-aligning roller bearings, such as: the ring ribs card roller bearings injury as the cause may be considered insufficient lubricant, not suitable for the oil discharge structure defects, foreign invasion, bearing installation error shaft deflection is to o large, there will be these reasons overlap. screw bearings
1, cavitation
Spherical roller bearings cavitation is generated when the solid surface in contact with the liquid and for the relative motion form of surface damage. When the lubricating oil when the low pressure area of ??the oil film, the oil will be the formation of bubbles, the bubble movement to the high-pressure zone, the bubble collapse under pressure, a great impact force and a high temperature, solid surfaces in the moment of collapse in this repeated impact, material fatigue off, the friction surface of the small pits, and then developed into a sponge-like scars. Overloading, high-speed, and load and speed changes in a large plain bearings, cavitation often occurs;
2, fluid erosion
The self-aligning roller bearings, fluid erosion is fluid intense impact on the solid surface will cause the fluid erosion, scars dot appears on the solid surface, this damage the surface is smooth;
3, the electrical erosion
Spherical Roller Bearing electrical erosion due to motor or electrical leakage, a spark is generated between the bearing friction surface, punctate scars caused friction surface, characterized the damage is reciprocating appeared in the hard surface of the journal. slim bearings