USH, Piston/Rod Seal | What USH, Piston/Rod Seal ? NOK SEAL HYDRAULIC | A2Z SEALS
R = 0.3 or below, R1 = 0.5 or below ,R2 = 1
The inner surface of the cylinder tube should be finished by buring (RLB) or honing (GH) to 0.4 to 3.2 μmRz (0.1 to 0.8 μmRa).
specially under severe lubricating condition, burnishing is required.
● The roughness is JIS B 2601 : 2001. When regulation length cannot be kept, apply Pt.
NOK OIL SEAL
Nok oil seal is a mechanical component used to seal oil. It isolates the parts of the transmission component that need to be lubricated from the output components so that lubrication and leakage are not allowed.
Specification Table
USH type Nitrile rubber (NBR), Fluoro rubber (FKM)
Material : Standard NOK A505 Heat Resistant type NOK F357
Note1: When using packing with mark as rod packing, provide separate grooves.
Note2: The Part number and the one stamped on the product might be different in case of heat resistance type.