This standard specifies the tolerances and rotational accuracy of radial bearings. The chamfer size limit is stipulated in GB274 "Rolling Bearing Assembly Chamfer Limit". This standard does not apply to some special types of radial bearings (such as drawn cup needle roller bearings) or bearings used in special occasions (such as aircraft frame bearings and instrument precision bearings).
GB/T 307.1-1994 history
2017GB/T 307.1-2017 Rolling bearings—Radial bearings—Geometrical product specifications (GPS) and tolerance values
2005GB/T 307.1-2005 Rolling bearings-Radial bearings-Tolerances
1994GB/T 307.1-1994 Rolling bearings--Radial bearings--Tolerances