GB/T 16908-1997

This standard specifies the key convention for balancing shafts and their associated fitments, such as pulleys, gears, or rotors, in mechanical systems. It is applied in the design, manufacturing, and testing of rotating machinery to ensure consistent and accurate balancing by defining the size and location of keyways and half-keys. The standard is used across industries like automotive, aerospace, and industrial equipment where precise dynamic balancing of rotating assemblies is critical.