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The 4 current
The reason: rotation electricity may lead to the groove or the notch. Double row deep groove ball bearing static grounding, electrical operation improperly can cause minor burns
Suggestion: to bearing outside of the parts before welding by proper grounding connection to avoid or reduce the current through the bearing
5 external materials
Reason: wear particles pollution and debris invasion could lead to import bearing working surface wear, abrasion and depression
Suggestion: the removal of invasive particles and debris, the replacement of lubricants, check the sealing system
6 eccentric
Reason: the eccentric and inclined or excessive load may lead to geometrical stress concentration or surface spalling
Suggestion: precise processing imported bearing seat and a shoulder block
Double row deep groove ball bearings after installation in order to check for proper installation, to running inspection. Small machinery can be rotated by hand, to confirm whether the rotation is smooth. Check the project and caused by foreign bodies, scars, indentation dysfunctional, due to poor installation, mounting process arising out of the bad moment is not stable, because the clearance is too small, installation error, sealing caused by friction force is too large and so on. If there is no anomaly can begin power operation.