Bearing in operation process failure is often the case, so don't make a fuss. Had problems, judgment and treatment is the key. Today we will explain the FAG bearing common the cause of the trouble.

Bearing the temperature too high reasons: oil quality requirements or to deteriorate, high viscosity lubricating oil; Institutions tight assembly (gap deficiency); Bearing assembly too tightly; The circle in the bearing shaft or shell and rotation; Overload; Bearing maintains a or
rolling body chipped, etc.

1, seat ring groove severe wear: may is a circle fall into foreign body, lubricating oil shortage or brand lubricant is not right.

2, bearing the temperature too high: in the organization operation, installation of bearing parts are allowed to have a certain temperature, when the hand over institutions shell, should not feel hot as normal, and indicates that bearing temperature was too high.

3, maintains a break: its reason is insufficient lubrication, crushing roller, a circle skewed, etc.

4, bearing noise: rolling bearing in the work to allow a slight operation noise, if too abnormal noise or noise or knocking, indicates that the bearing is a failure.

5, plastic deformation: the tao and roller bearings rolling contact surface appear not uniform pit, explain bearing produce plastic deformation. The reason for this is bearing in a large static load or impact load, the working surface of the local stress more than material yield limit, this generally occur in low speed rotating bearing.

6, bearing burns: burn the groove, rolling bearing on the body back to HuoSe. The cause of the burn is usually insufficient lubrication, lubricating oil quality requirements or metamorphism, and bearing assembly too close, etc.

7, groove surface metal peeling: bearings rolling elements and inner and outer groove surface are under the role of periodic pulse loading, which causes the cycles of contact stress. When the stress cycling times up to a certain value, in the rolling body or the inner and outer groove work face only fatigue spalling. If bearing load is too big, can make the fatigue intensified. In addition, bearing installation is not straight, shaft bending, also can produce groove spalling phenomena. Rolling bearing of the tao will reduce shaft of fatigue spalling running accuracy, make the organizations that vibration and noise.

8, the bearing ring crack: housing circle crack reason may be bearing with close, bearing foreign or inner circle, become loose, bearing tolerance a deformation, installation of poor surface processing bearings.

9, maintains a metal adhesion in the roller, the reason is probably roller is stuck in maintains a in or insufficient lubrication.

The rolling bearing produce noise reasons: more complex,

1) is bearing inner and outer surface with wear. Because this in kind of wear, destroy the bearing and shell, bearing and the shaft with relations, lead to axis deviated from the correct position, in the shaft in high-speed motion produce different ring. When bearing fatigue, the metal surface spalling, also can make the bearing radial clearance increase produce different ring.

2) bearing insufficient lubrication, form of dry friction, and bearing, etc, will be broken cause abnormal sound.

3) bearing wear loose after desert, maintains a looseness damage, also can produce abnormal sound of bearing damage. The rolling bearing remove when the examination, but according to bearing damage judgment of the bearing fault and the causes for the damage.




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