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INA bearings rolling and within the outer ring raceway surface are under periodic pulse load, resulting in periodic changes in the contact stress. Reaches a certain value when the number of stress cycles, or the rolling element, the outer ring raceway surface fatigue spalling. If the bearing load is too large, will exacerbate this fatigue. In addition, INA Bearing installation is not correct, shaft bending, will produce the spalling of the raceway.
Bearing Gulu body and within the outer ring raceway surface of the bear periodically the effectiveness of the pulsating loads, so the initiation of a cycle of changes in contact stress. When the number of stress cycles back to reach a certain figure, the in Gulu body or office surface of outer ring raceway on the initiation of fatigue spalling. If the bearing load is too large, make this fatigue exacerbated. Additional, INA Bearing installation is not correct, the axis buckling, also the initiation of the spalling of the raceway. INA Bearing raceway fatigue spalling would reduce the axis of the operation precision, institutions, oscillation and noise.
When the fatigue of the bearing, the appearance of metal flaking, but also make the radial bearing gap increases the initiation of abnormal sound. In addition, the bearing lubricant is not sufficient to form a dry friction, and bearing broken the initiation of abnormal sound. INA Bearing wear Songkuang to maintain the frame relaxation destroyed, and the initiation of abnormal noise bearing damage. INA Bearing disassembly investigation, based on the bearing damage things to determine the bearing failure and destruction of CMU.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 6219 NSK | 95 | 170 | 32 |
| 6019 NSK | 95 | 145 | 24 |