You can carefully check whether there is muddy oil on the surface of needle bearing.
release time：2020-04-18 viewed：251次
You can carefully check whether there is muddy oil on the surface of needle bearing. The outer packing of needle bearing is not clear. You can listen to the needle roller bearing for noise. You can see if the steel seal on the needle bearing is clear. It can be seen whether the chamfer of needle bearing is even. Check the manufacturing date and date code on the packing box of needle bearing. Check the bearing model and bearing model suffix letters, which represent different production years. Check the bar code. All bearings produced after 2000 have bar codes.
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