is given in Table 11.Normally, the hole basis system is
preferred; however, when a com-mon shaft mates with several holes,
the shaft basis system should be used.
The hole basis and shaft basis fits shownin Table 11arecombined
with the first-choice
sizes shown in Table 10to form Tables 12, 13, 14,and 15, where
specific limits as well asthe resultant fits are tabulated.
If the required size is not tabulated in Tables 12through 15then
the preferred fit can becalculated from numerical values given in
an appendix of ANSI B4.2-1978 (R1984). It isanticipated that other
fit conditions may be necessary to meet special requirements, and
apreferred fit can be loosened or tightened simply by selecting a
standard tolerance zone asgiven in the Standard. Information on how
to calculate limit dimensions, clearances, andinterferences, for
nonpreferred fits and sizes can also be found in an appendix of
this Stan-dard.
