The tolerances specified in this standard ensure performance and
interchangeability of components and bearings of radial rolling
bearings. They do not, however, allow any direct conclusions to be
drawn in respect of the runout tolerances.
The tolerances specified apply to radial rolling bearings
covered in the dimension standards for rolling bearings, not,
however, to radial rolling bearings for use in the aircraft
industry, tolerances for such bearings being specified in separate
As compared with ISO 492 - 1986, this standard does not
specify tolerances for the outer ring flange;
see Explanatory notes. See ISO 1132 - 1982 for definitions
and DIN 620 Part 1 for gauging methods.
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