1. improper use of self-aligning ball bearings.
Reason: improper installation, operation or demolition may cause a cage deformation or defect
Recommendation: use appropriate operations, installation and removal tools
2. insufficient lubrication
Reason: insufficient lubrication or incorrectly, you may cause component abrasion or serious distortion of the self-aligning ball bearing
Recommendation: improved lubrication system, timed properly to supplement or replace lubricants
3. rust and corrosion
Reason: access to water may cause the NSK bearings component corrosion and rusting. Corroded bearings after injury while at work may cause spalling
Recommendation: check seal on a regular basis, to ensure a good seal effect, correct storage of self-aligning ball bearings
4. the current
Reason: powered may cause occur when you rotate notch or nicks. Bearing at rest, improperly grounded electrical operation will cause a slight burn
Recommendation: swap parts before welding other than ball bearings through appropriate grounding connection to reduce or prevent current through bearing
5. the external material
Reason: wear particle contamination and debris penetrated may lead to NSK bearing face wear, scratches and dents
Recommendations: clear intrusion into particles and debris, replace the lubricant, check the seal system
6. the eccentric
Reason: eccentric, inclined or large loads could cause geometric stress concentration, or peeling surface
Recommendations: accurately machining self-aligning ball bearing seats and abutments
Self-aligning ball bearings after the installation is complete, in order to check for proper installation, run checks to. Small mechanical hand rotation, to confirm that the rotate smoothly. Check the project due to foreign body, caused by scars, indentation to seize up, because of the bad installation, mounting process arising out of the bad moments are not stable, owing to the clearance is too small, caused by installation errors, seal friction torque is too large, and so on. Without exception you can start power function.
Dynamic operation, starting from no-load speed, slowly raised to the conditions set forth in the rated operation. Things to check for in the commissioning, whether any unusual changes in sound, NSK bearing temperature, lubricant leakage or discoloration, and so on. If you find an exception, should immediately suspend the operation, inspection machinery and, if necessary, to remove lower ball bearings checked.



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