354
CHAPTER 13
TOLERANCES AND FITS
ǣͳ͵Ǧ͵ǢǤ
ͳǤ α͵ǤͷͲͲǢȂͺǣ൅ͷ
െͲǢ െ͹
െͳͲǤͷǢ ൅͹
൅ͳͷǤͷ
ʹǤ αͲǤͷͲͲǢȂʹǣ
͵ǤαͷȀͺȂͲǤ͸ʹͷǢȂͺǣ
 ൅ʹǤͺ
െͲ Ǣെ͵Ǥͷ
െͷǤͳǢ൅͵Ǥͷ
൅͹Ǥͻ
ͶǤ αͲǤͺͲͲǢȂȂͷǣ
ͷǤ αͳǤʹͷͲǢȂͺǣ൅ͶǤͲ
െͲ ǢെͷǤͲ
െ͹ǤͷǢ ൅ͷǤͲ
൅ͳͳǤͷ
͸Ǥ αͶǤͲͲͲǢȂͺǣ൅ͷǤͲ
െͲ Ǣ െ͹ǤͲ
െͳͲǤͷǢ ൅͹ǤͲ
൅ͳͷǤͷ
͹Ǥ αͲǤ͹ͷͲǢ
͵ͶǤʹȂǤͷ
ͺǤ αͳǤͷͲͲǢȂͺǣ൅ͶǤͲ
െͲ ǢെͷǤͲ
െ͹ǤͷǢ ൅ͷǤͲ
൅ͳͳǤͷ
356
ͻǤ TolerancediagramsforProblems1to8shownbelowǣ
357
ForceorShrinkFits:SeeTable13Ǧ4
ͳͲǤ α͵ǤʹͷǢαͶǤͲͲǣȂEα͵ͲͳͲ͸
ܽ ൌ ͲǢܾ ൌ ͵ǤʹͷȀʹ ൌ ͳǤ͸ʹͷǢܿ ൌ ͶǤͲͲͲȀʹ ൌ ʹǤͲͲͲ
ͳͳǤ ܽ ൌ ͵ǤͷͲȀʹ ൌ ͳǤ͹ͷͲǢܾ ൌ ͶǤͲȀʹ ൌ ʹǤͲͲͲǢܿ ൌ ͶǤͷͲȀʹ ൌ ʹǤʹͷͲ
 ͵ǣ൅ͳǤͶ
െͲ ൅ͶǤͻ
൅ͶǤͲǤʹǤ͸
ͶǤͻ
ǣܫܦ ൌ ସǤ଴଴ଵସ
ସǤ଴଴଴଴ǣܱܦ ൌ ସǤ଴଴ସଽ
ସǤ଴଴ସ଴ǣߜ௠௔௫ ൌ ͲǤͲͲͶͻ
݌ ൌ ͳͷ͹ͷ െ ሾͳ͵ െ ͵ሿ
଺Ǣܧ௜ൌͳͷൈͳͲ
଺Ǣߥ௢ൌ ͲǤʹ͹Ǣߥ௜ൌͲǤʹ͹
358
 ǣʹͲͳͶǦͶǡݏ௬ൌ Ͷʹ͸Ͳ͸ͳ െ ͸ǡݏ௬ൌ ͶͲ
 ǡ
ͳ͵Ǥ 
ܽ ൌ ൫ʹǤͲͲ െ ʹሺͲǤͲ͸ͷሻ൯Ȁʹ ൌ ͲǤͻ͵ͷǢܾ ൌ ʹǤͲͲȀʹ ൌ ͳǤͲͲͲǢܿ ൌ ͵ǤͲͲȀʹ ൌ ͳǤͷͲ
 ȏͳ͵ǦͷȐߪ௜ൌെ݌ቀ
௕మା௔మ
௕మି௔మቁൌെ݌ቀ
ଵǤ଴଴଴ା଴Ǥ଼଻ସଶ
ଵǤ଴଴଴ି଴Ǥ଼଻ସଶቁ ൌ െ݌ሺͳͶǤͺͻͺሻ

359
ͳͶǤ α͵ǤʹͷͲǢαͲǤͲͲͺͶ
αͲǤͲͲʹͲǢ ൌ ͲǤͲͲͺͶ ൅ ͲǤͲͲʹͲ ൌ ͲǤͲͳͲͶ
ఋ
ͳͷǤ Ȃ൅͹ͷ െ ʹͲιǢοݐ ൌ െͻͷι
ߜൌߙܮ
ሺοݐሻൌሺͳͲǤͲ ൈ ͳͲି଺ሻሺͶǤͲͲሻሺെͻͷሻൌ െͲǤͲͲ͵ͺ
 αͲǤͲͲͶͻ
ͳ͸Ǥ ͳ͵Ǧ͹ǣ