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): 107.32 Bore Diameter (mm): 127.00 Seal Shape: Type 4 Groove Width - A (+/- 0.0508 mm) (mm): 9.63
WHEEL TRACTOR 627 621 623 639D 615C 627B 627E 623B 637 631D 631E 623E 631C 621B 633C 637D 637E 615 621E 633D ARTICULATED TRUCK D35C D300E D300D D400 D300B D400E D250E D250B D40D D400D D25D D25C D350E D350D D350C D35HP D30C D30D WHEEL SCRAPER 633 639D 621E 633B 633D SOIL COMPACTOR 825B BULLDOZER 834U 834S WHEEL DOZER 834 824B 834B LANDFILL COMPACTOR 826B 836 MOTOR GRADER 16 12F 14E WHEEL LOADER 988B 992B 992C 994D 988 994 992