The sealing groove type, size and tolerance specified in this standard are applicable to the combined sealing ring with support ring installed on the piston of the reciprocating hydraulic cylinder for bidirectional sealing. This standard refers to the international standard ISO 6547-1981 "Sizes and Tolerances of Groove Dimensions and Tolerances of Sealing Rings for Hydraulic Cylinder Pistons".
GB/T 6577-1986 history
2021GB/T 6577-2021 Types, dimensions and tolerances of groove for seals with bearing rings for hydraulic cylinders piston
1986GB/T 6577-1986 Hydraulic fluid power--Cylinders--Piston seal housings incorporating bearing rings--Dimensions and tolerances