1. Precision bearings are subjected to load capacity are much smaller than the bearing of the same size, therefore, its rolling bearing radial dimensions. So, bear large radial loads and requirements of small size, compact structure of internal combustion engine crankshaft bearings, plain bearings.
2. Large precision bearing vibration and noise, especially be felt in late. So, a high demand for precision bearing, no vibration, better selection of sliding bearing.
3. Precision bearings are particularly sensitive to scrap metal or other foreign bodies, once mixed with foreign bodies, there could be intermittent vibration and noise of large, easily lead to damage. Rolling bearing life there are definite limits.



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