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Disassembling and surface quality analysis of bearing manufacturing
by:Waxing
2020-11-15
Bearing manufacturing source of disassembling and surface quality analysis: bearing | last updated: - 2020
09 -
02 bearing manufacturing disassembling bearing before installation should be clean.
Non-standard bearing installation, auxiliary sell straight uniform pressure into, don't use hammer percussion, specifically prohibit direct bearing on tap.
When bearing race with a hole loose, should be to repair or replace the bearing seat holes, do not use on the surface of bearing with pitting or pad barely use copper method.
Bearing removal should be used when appropriate to pull pull the bearing, do not use a chisel, hammer percussion bearing, etc.
Bearing surface quality analysis based on the bearing inner and outer circle of the channel and the ball after cleaning, can be found: inner and outer ring raceway guard parts found fine axial indentation, parts with oxidation 'blue' phenomenon.
Thus again bearing has experienced a very high temperature environment.
Through the cold acid on bearing raceway surface after cleaning, we clearly see the inner and outer ring raceway has been severely damaged, and the axial stripes, concentrated in the side of the channel, and channel center is not obvious, that axial force of the bearing is relatively large.
For double deep groove ball bearings, which can withstand the axial force is relatively small, more than double row angular contact bearings can withstand axial force is much smaller.
Can clearly see the steel ball surface scratches, there are 3 sets of bearing steel ball surface, to illustrate the three sets of bearing experienced a very high temperature environment.
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