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1, bearing noise
NSK Bearings allow minor operation sound work, if the noise is too large or unusual noise or crash, indicates that the bearing failure. Rolling bearing noise is more complex, one of the bearing inner and outer mating surface wear. Because of this wear, with the relationship of the destruction of the bearings and housings, bearings and shaft, resulting axis deviated from the correct position, the generation of abnormal noise in high-speed movement of the shaft. When bearing fatigue, surface metal flaking, also cause bearing radial clearance increased abnormal sound. In addition, insufficient bearing lubrication, a dry friction bearings broken will produce an unusual sound. The cage loose damage, bearing wear Songkuang will produce abnormal sound.
2, the bearing temperature
TIMKEN bearings installed parts in the operation of the institutions, are allowed a certain temperature is normal when stroking institutions housing should not feel hot, otherwise the bearing temperature.
Bearing temperature: the lubricant quality does not meet the requirements or deterioration, lubricant viscosity is too high; institutions assembly too tight (lack of space); tight bearing assembly; rotation of the bearing seat on the shaft or shell; overload large; bearing retainer or rolling body fragmentation.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7226ATYNSULP4 NSK | 130 | 230 | 40 |
| 7226A5TYNSULP4 NSK | 130 | 230 | 40 |