A two-piece seal, consisting of a piston ring and an expander, which prevents oil transfer between the rod end of the cylinder and the cap end. The piston seal is usually made of Teflon, with nylon available for pressure greater than 3000 psi (20,670 kpa). The various shaped expanders are nitrile.
Groove Diameter - B (+/- 0.0762 mm) (mm): 161.16 Bore Diameter (mm): 184.15 Seal Shape: Type 1 Groove Width - A (+/- 0.0508 mm) (mm): 9.63
TRACK-TYPE TRACTOR D6G SR D8 D8T D8R D8K D8GC D8N D6F SR D5B D9G D8 GC D8R II D5E D6G2 XL D6D D6E D6G WHEEL TRACTOR 621 651B 631G 651E 641 621B 637G 657E 657B 621E 651 641B 657G 657 RIPPER 977 8D 8B 951 955 6 5 4 8 HYDRAULIC CONTROL 163 183B 153 WHEEL SCRAPER 630B 621 627 631G 651E 631D 631C 631E 631B 633 639D 627B 627E 637 621E 633E 657G 633B 657 637E 633D 621B 637G 657E 637B 637D 651 TRACK LOADER 977H 983B 983 BULLDOZER 8S 8U 5A 5S 6A 6S 8SU 977A 8C 8A WINCH 57H 55 WHEEL LOADER 980B 980 988