Bearing failure exposed during operation is often the case, so raw is not required. Revealed a failure, judgment and disposal is critical. Today we explain to SKF bearings common faults and troubleshooting approach.
1. bearing temperature too high 　　
Institutional operation, install bearing parts to allow a certain degree of temperature when using hand stroked the body shell, should not feel hot to normal, instead you bearing with temperature is too high. 　　
SKF bearing high temperature of duanyou: lubricating oil quality and unsatisfactory or deterioration, lube oil viscosity is too high; body fitted too tight (insufficient gap); bearing Assembly too tight; bearing washer on the shaft or in the shell rotation; load too large; fragmentation of bearing maintenance or SKF bearings. 　　
2. bearing noise 　　
SKF bearings permit some minor running sound in the Office, if the sound is too large or abnormal noise or impact sound, then bearing is faulty. 　　
Initiation of SKF bearing noise duanyou complex, one of which is within the bearing wear, outer ring of suitable appearance. Since this type of wear, damage bearings suitable relationship with shell, bearings and shafts, resulting in accurate location is out of the way on the axis, axis at the initiation of abnormal sound of high speed movement. When the bearing when tired, their exterior metal flake, also bearing radial clearance increases the initiation of abnormal sound. Beyond this, bearing lubricants are not adequate to form dry friction, as well as voice of abnormal bearing Crush initiation.　After bearing wear loose, maintained loose destroyed, initiation of abnormal noise bearing damage. 　　SKF bearings when removing investigation, could be based on bearing damage situation judgment of bearing failure and destruction of duanyou.
1. the Raceway surface metal Flake 　　
SKF bearings and the bearing inner and outer ring raceways have assumed cyclical effect of pulsating load on the surface, initiation cycle change of contact stress. When the number of stress cycles back after you reach a certain number, or SKF bearings inner and outer ring raceways Office on the initiation of fatigue spalling on the surface. If the bearing load is too large, will exacerbate this tired. Additional, the bearing is not being installed, axis buckling, also initiation Raceway spalling phenomenon. 　　Bearing Raceway fatigue spalling concrete will help reduce the running accuracy of the shaft, makes body oscillation and noise.
2. bearing burning 　　
Burning bearing raceways, SKF bearings have a temper. 　　Cauterization of duanyou ordinary lubricants are not sufficient, lubricating oil quality and unsatisfactory or deterioration, as well as the bearing Assembly too tight.
3. van variants 　　
Bearing raceways and rollers on the contact surfaces revealed warp pockmarks, decrypt bearing initiation of van Variant. 　　Its duanyou is in a very large static bearing load or shock loading utility, Office looks for flexor flexible limit of partial stress over material, this kind of thing on common occurs in the low speed of rotation of the bearing.
4. the housing washer crack 　　
Duanyou bearing ring crack initiation may be bearing fit too tight, exotic relaxation or inner ring of the bearing, forgive variant of the bearing, install the external operation of the bearing is not good. 　　
5. maintenance of fragmentation 　　
Duanyou lubricants are not sufficient, SKF bearing broken, seat tilt, and so on. 　　
6. maintenance of metal paste on the SKF bearings 　　
May duanyou SKF bearings are stuck in maintenance or insufficient lubricating oil in frame. 　　
7. seat Raceway severe abrasion 　　
May be the circle have fallen into foreign bodies, insufficient lubricating oil or lubricating oil grade is not consistent with.



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