This standard specifies the formation, terms, definitions and general provisions of conical fits. This standard is applicable to fits of taper C from 1:3 to 1:500, length I from 6 to 630mm, and diameter to 500mm smooth cone. The given method of its tolerance is in accordance with the provisions of Article 4.2a in GB11334-89 "Tolerance of Cones". Right now:
GB/T 12360-1990 history
2005GB/T 12360-2005 Geometrical Product Specifications(GPS) Cone fit