SEALING SYSTEM ANALYSIS
|
| COMMON REASONS
FOR SEALING SYSTEM FAILURES |
| Burrs on bore
|
Excessive stiffening of compound
|
Seal installed backward
|
Cocked seal
|
Extruded lip
|
Seal slip-stick
|
| Corrosion on shaft
|
Inverted lip
|
Shaft to bore misalignment
|
| Cracking of seal lip
|
Lip wear
|
Shaft wear
|
| Deterioration of compound
|
Lubrication breakdown
|
Thermal expansion of bore
|
| Dry start up
|
Missing spring
|
Vibration
|
| Excessive shaft run out
|
Nicks or pits on shaft
|
Wrong seal designation
|
| Excessive softening of compound
|
No bore lead-in chamfer
|
|
