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BS ISO 492:2014
Rolling bearings. Radial bearings. Dimensional and geometrical tolerances (British Standard)
ISO 492:2014 specifies dimensional and geometrical characteristics, limit deviations from nominal values, and tolerance values to define the interface (except chamfers) of radial rolling bearings. The nominal boundary dimensions are defined in ISO 15, ISO 355 and ISO 8443.
British Standards Institution [bsi]