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Description
The rod style unloaded twin lip U-cup features a secondary “bump” or lip on the inside heel of the seal that provides additional stability in the seal groove. The increased stability enhances the long-term performance of the seal. In rod seal leakage tests, the twin lip rod U-cup had better performance than the conventional U-cup. This is due to the initial leakage of the seal being reduced by the secondary sealing lip.
| Application | Dynamic reciprocating applications and low pressure piston & rod applications. | Inside Diameter | 4'' | Groove Width | 0.550'' |
| Piston Width | 4 3/4'' | Rod Width | 4'' | Rod Groove | 4 3/4'' |
| Piston Bore | 4 3/4'' | Piston Groove | 4'' | Width | 3/8'' |
| Height | 1/2'' | Rod Throat | 4'' | Outside Diameter | 4 3/4'' |
