Sealing System Leakage Analysis - Spring
Missing Spring
| Probable Causes | Actions or Countermeasures |
|---|---|
| Seal may never have had a spring. | Check for spring witness marks in spring groove. Also light wear on the primary lip. |
| Spring may have become dislodged during seal or shaft installation. | Check installation procedures. |
| Spring joint may have separated. | Check installation procedures. Check garter spring joint quality. |
Corroded Spring
| Probable Causes | Actions or Countermeasures |
|---|---|
| Spring may not have had proper rust preventative applied by supplier. | Check new seals from the same supplier. |
| Application may be exposed to excessive moisture. | Check for moisture in lube or corroded components. |
| Application may contain a corrosive fluid. | Specify stainless steel spring. |
| Seal may have been improperly packaged and/or stored prior to installation. | Check service stock. |
| Wrong spring material. | Consult supplier. |
Check for Correct Dimensions and Spring Load.
| Probable Causes | Actions or Countermeasures |
|---|---|
| Wrong spring on seal. (excessive wear or no wear on primary lip). | Check seal drawing for spring dimensions. |
| Spring not properly normalized. | Check seal drawing. Check for proper heat treatment. |
| Improperly manufactured spring. | Check seal drawing for spring dimensions. |
More than Spring
| Probable Causes | Actions or Countermeasures |
|---|---|
| Malfunctioning spring installation equipment at seal manufacturing location. | System audit at supplier. |
| Loose springs as seal installation station. Extra spring installed by the assembler. | Review installation station, remove and loose springs. Review seal design and packaging. |
Separated Spring
| Probable Causes | Actions or Countermeasures |
|---|---|
| Improper spring nib configuration. | Inspect spring. |
| Excessive vibration or stick-slip of seal. | Inspect primary lip for excessive, cyclical seal wear. |
| Improper seal installation. | Review installation procedures. |
Login
News
February 23rd
Here is a great article on grease compatibility . . .
The Skinny on Grease Compatibility
July 30th
Here is a link to a great article about how to avoid particulate contamination . . . Obviously it goes without saying that a sealing...
How to Avoid Particulate Contamination