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Normas

ISO 1940

International standard specifying balance quality grades (G) for rigid rotors. Defines 11 grades: G0.4 (precision grinding spindles) to G4000 (large diesel engine crankshafts). G6.3 is typical for general industrial machinery; G2.5 for fans and pumps. Directly applicable to the balancing of drive pulleys and transmission rotors to prevent vibration and bearing damage.

What you need to know

  • International standard specifying balance quality grades (G) for rigid rotors.
  • Defines 11 grades: G0.4 (precision grinding spindles) to G4000 (large diesel engine crankshafts).
  • G6.3 is typical for general industrial machinery; G2.5 for fans and pumps.
  • Directly applicable to the balancing of drive pulleys and transmission rotors to prevent vibration and bearing damage.

Full definition

International standard specifying balance quality grades (G) for rigid rotors. Defines 11 grades: G0.4 (precision grinding spindles) to G4000 (large diesel engine crankshafts). G6.3 is typical for general industrial machinery; G2.5 for fans and pumps. Directly applicable to the balancing of drive pulleys and transmission rotors to prevent vibration and bearing damage.

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