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1 surface metal raceway spalling
The FAG bearing rolling elements and the inner and outer ring raceway withstand periodic pulsating loads role, resulting in a cycle of change
Contact stress. When after stress cycles reaches a certain value, the rolling element or the outer ring raceway work surface to produce fatigue spalling. If the bearing load is too large, will this fatigue exacerbated. In addition, the bearing installation errors, shaft bending, will produce the raceway flaking. Bearing raceway fatigue spalling will reduce the running accuracy of the shaft, the institutions vibration and noise.
2. Bearing burns
Burns of FAG bearing its raceway, rolling element tempering color. Burn is generally insufficient lubrication, the quality of lubricating oil does not meet the requirements or deterioration, and tight bearing assembly.
3 plastic deformation
FAG bearing raceway and roller contact surface uneven pit, bearing plastic deformation. The reason is bearing a lot of static load or impact loads, the working surface of the local stress exceeds the yield limit of the material, which
The species generally occurs in low-speed rotation of the bearing.
4 bearing circle crack
Bearing race cracks may be due to the bearing with tight, loose bearing foreign or inner ring the FAG bearing inclusive deformation, poor installation of the bearing surface processing.
5. Cage fragmentation
The reason is the lack of lubrication, rolling body crushing, such as seat skew.
6. Holder metal adhesion on the rolling body
The possible reason is that the rolling body is locked within the holder or insufficient lubrication.
7 seat raceway severe wear
Might fall into foreign body, lack of lubricating oil or lubricating oil grades inappropriate Block circle.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7204A5TYNDBLP4 NSK | 20 | 47 | 14 |
| 7204CTYNDBLP4 NSK | 20 | 47 | 14 |