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7/25/2019 tolerance & Fit.pdf
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((Tolerances and Fits 1
:
.
:
G.M. Maitra and L.V. Prasad, Handbook of Mechanical Design, Tata
McGraw-Hill, New Delhi, India, 1985.
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(tolerance grades):
((i
((grades
.
DDismicrometer 001.045.0)(UnitToleranceStandard 3 +=
mean)lgeometricaThe:sizesstep(For the)(DiameterNominal: mmD
:
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((Grades 3
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((Fundamental Deviation 4
)
(
.
.((a-z
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((Fits7
:
:
:((shaft-basis-
(h)
:((hole-basis-
((H
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((Fits 8
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- 9
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