First, poor lubrication (about 50%)
According to the survey, poor lubrication is one of the main damage caused by the spherical bearing premature. The main reasons include: not timely add oil lubrication or grease lubricant; lubricants or lubricating oil filling is not in place; improper selection of lubricants or lubricants; lubrication method is not correct.
Recommendation: Select the correct lubricant or lubricants, using the correct lubrication filling method.
Second, improper installation (about 16%)
1. installation, use brute force, direct percussion with a hammer outside the spherical bearing the greatest harm to the bearing; is the main reason causing deformation.
2, the installation is not in place, the installation deviations or mounted to the bearing, causing the bearing clearance is too small. Inside and outside the ring is not in the same center of rotation, resulting in a different heart.
Recommendation: Select the appropriate professional bearing installation tool, the installation is complete use special detection equipment.
Third, fatigue (about 34%)
Fatigue failure is the bearing damage. Common fatigue failure may be due to: bearing long-term overload operation; not timely maintenance; improper maintenance; aging equipment.
Fourth, pollution (about 14%)
Pollution can lead to the spherical bearing premature failure of pollution is dust, metal shavings from entering inside the bearing. The main reasons include: prematurely open NSK Bearings packaging before use, resulting in pollution; installation work environment dirty, polluting; bearing work environment dirty, working medium pollution.
Recommendation: best before use Do not disassemble the packaging of bearings; to keep the environment clean install, installation and cleaning of the

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