JB/T 6657-1993
Dimension and tolerance for sealing rings intended to be used in air cylinders (English Version)
- Standard No.
- JB/T 6657-1993
- Language
- Chinese, Available in English version
- Release Date
- 1993
- Published By
- Professional Standard - Machinery
- Latest
- JB/T 6657-1993
- Scope
- This standard specifies the basic structure, dimensional series and tolerances of QY, C, CK, J and ZHM polyurethane rubber seals and QH exposed skeleton rubber buffer seals for cylinders. This standard is applicable to sealing rings for cylinders that use compressed air as the medium, the medium temperature is -20~+80℃, and the working pressure does not exceed 1.6 MPa. Among them, type QY is used for one-way sealing on the piston and piston rod of the cylinder; type c and type CK are suitable for two-way sealing on the piston and piston rod of the oil-free cylinder; type J is used for dustproofing the piston rod; type ZHM Used for dust-proof sealing of piston rod; GH type is a buffer sealing ring.
JB/T 6657-1993 history
- 1993 JB/T 6657-1993 Dimension and tolerance for sealing rings intended to be used in air cylinders
