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Description / Abstract:
This Standard covers requirements for square and rectangular parallel
keys and keyways intended for
both alignment of shafts and hubs, and transmitting torque between
shafts and hubs.
Keys covered by this Standard have a relatively tight width tolerance.
The deviations are less than
the basic size. Keys with greater width tolerance and with deviations
greater than the basic size
are covered by ASME B18.25.3M.
The inclusion of dimensional data in this Standard is not intended to
imply that all sizes
described are production stock items. Consumers should consult with
suppliers concerning lists of
stock items.