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372
CHAPTER 17
LINEAR MOTION ELEMENTS
ͷǤ ܣ௧ൌி
ఙೌൌଷ
ଵȀమൌ͵ǤͲ
ଶ
Ǥ ܣ௦ൌி
ఛೌൌଷ
ȀమൌͷǤͲ
ଶ
Ǥ ߣ ൌ ݐܽ݊ିଵ ൬
గ൰ൌݐܽ݊
ିଵ ቀǤଷଷଷ
గሺଶǤଶଽଷଽሻቁൌݐܽ݊
ିଵሺͲǤͲͶ͵ሻൌ ʹǤͷι
ͺǤ ǣܶௗൌி
ଶቀି௦ః௧ఒ
௦ఃା௧ఒቁൌଷሺଶǤଶଽଷଽሻ
ଶቀǤଵହିሺǤଽ଼ሻሺǤସଷሻ
Ǥଽ଼ାǤଵହሺǤସଷሻቁ
ͻǤ ǣΧǦǢܨ ൌ ͶͲͲͲǢܮ ൌ ൌ ଵ
ൌଵ
ൌ ͲǤͳ
373
ͳͳǤ ͳǦ͵ǣߣ ൌ ݐܽ݊ିଵ ൬
గ൰ൌݐܽ݊
ିଵ Ǥଵ
గሺǤସଶସሻൌ Ǥૠι
ͳʹǤ ͳǦǣ݁ ൌ ி
ଶగ்ೠൌሺସሻሺǤଵሻ
ଶగሺଷଷሻൌ ǤܗܚΨ
ͳ͵Ǥ ݊ ൌ Ǥହ୧୬
ୱൈଵ௩
Ǥଵ ൈ௦
ൌ ૡ܀۾ۻ
்
MetrictrapezoidalpowerscrewsȂͳͺǦʹͻȂͳǦͳ
ͳͺǤ ǣαͳʹͷǢߪൌ ͷ ൌ ி
ܣ
௧ൌி
ఙೌൌଵଶହே
ହேȀమൌ ͳଶȂ
ͳͺʹ͵
374
ͳͻǤ ͳʹͷ݂ ൌ ͲǤͳͷ
ʹͲǤ ܨ ൌ ͳʹͷǡ݂ ൌ ͲǤͳͷ
ʹͳǤ ͳʹͷȂͶʹͷͲǤͷǢͷͷൈͻ
ܲൌܶ
௨ܯܶ௨ൌ ͷͺǤήǤͳͻ
ʹʹǤ ߣǣߣ ൌ ݐܽ݊ିଵ ൬
గ൰ൌݐܽ݊ିଵ ቀଽ
గሺହǤହሻቁ ൌ Ǥιሾͳെ͵ሿ
ʹ͵Ǥ ȏͳǦȐǣ݁ ൌ ி
ଶగ்ೠൌଵଶହேሺଽሻ
ଶగሺହ଼ହହଽேήሻ ൌ ǤૠǢࢋ ൌ ૠǤΨ
ʹͶǤ ǣܨ ൌ ͺͷͲͲܰǢߪൌ ͳͳͲ
375
ʹǤ Ǣܨ ൌ ͺͷͲͲܰǢ݂ ൌ ͲǤͳͷǢȏͳǦͶȐ
ʹǤ ǢʹͶͲ͵Ǥͷ
ʹͺǤ ߣ ൌ ݐܽ݊ିଵ ൬
గ൰ൌݐܽ݊
ିଵ ቀଷǤ
గሺଵଶǤହሻቁ ൌǤૠι[BorderlineselfǦlocking]
͵ͲǤ ͳͶǣΧǦʹǡαʹͺǤͲ
ǤȏͳǦͳͷȐ
݊
ሺܴܲܯሻൌସǤൈଵలௗೞ
ሺௌிሻమ
376
Ǧܵܨ ൌ ͵ǤͲ
݊
ൌ
ௌி ൌଷଷଷଽோெ
ଷൌ ܀۾ۻ