5J-5559 Two-Piece Seal
Cat® Two-Piece Seal for Ripper Lift and Hoist Cylinders
Description
A two-piece seal consisting of a piston ring and an expander, used to prevent oil from flowing between the rod end and the cover end of the cylinder. The piston seal ring is usually made of Teflon, and nylon material can be selected when the pressure is greater than 3000 psi (20670 kPa). Expanders of various shapes are made of nitrile rubber.
Specifications
| Groove Width – A (+/- 0.0508 mm) | 9.63 mm |
|---|---|
| Groove Diameter – B (+/- 0.0762 mm) | 184.28 mm |
| Hole Diameter | 209.55 mm (8.25 in) |
| Groove Diameter – B (+/- 0.003 in) | 7.26 in |
| Seal Shape | Type 1 |
| Groove Width – A (+/- 0.002 in) | 0.38 in |
Compatible Equipment
- Dozers: D10N, D10, D11N, D10R, D10T, D8L, D9N, D9L
- Excavators: 637G, 637E





