Bushing and Mating Shaft Inspection
Note: Proper bushing and
corresponding mating shaft inspection should be performed before
replacing the bushing, shaft, and in some cases, the component
which houses the bushing. Thoroughly clean and dry the bushing and
shaft surfaces before inspecting for damage.
Any of the following bushing conditions require replacement of
the bushing and/or housing:
| • |
Discoloration due to heat
distress |
| • |
Misalignment or displacement
of bushing as a result of spinning in housing |
| • |
Medium to heavy scoring that
can be easily detected with fingernail. Light scoring is a normal
condition. |
| • |
Debris embedded into the
bushing lining material |
| • |
Obvious damage, including
excessive and uneven wear |
| • |
Excessive polishing. Minor
polishing of the bushing is an indication of normal wear and does
not require replacement. |
Any of the following conditions require replacement of the
bushing's mating shaft:
| • |
Discoloration due to heat
distress |
| • |
Rough surface finish that can
be easily detected with finger |
| • |
Obvious shaft abnormalities,
including warping or uneven surfaces |
| • |
Obvious damage or
cracking |
|
