This standard specifies the material, quality requirements, surface roughness and balance of pulleys. This standard applies to V-belt pulleys, ribbed pulleys, flat pulleys, and synchronous pulleys, but not to variable-speed pulleys with movable rims.
GB/T 11357-2020 Referenced Document
GB/T 9239.1 Mechanical vibration. Balance quality requirements for rotors in a constant(rigid) state. Part 1: Specification and verification of balance tolerances
GB/T 11357-2020 history
2020GB/T 11357-2020 Quality, roughness and balance of transmission pulleys
2008GB/T 11357-2008 Quality,roughness and balance of transmission pulleys
1989GB/T 11357-1989 Quality,Surfaceroughness and balance of transmission pulleys