Two gears of module 4mm have 24 and 33 teeth. The pressure angle is 20° and each gear has a standard addendum of one module. Find the length of arc of contact and the maximum velocity of sliding if the pinion rotates at 120 r.p.m.
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20.58 mm ; 0.2147 m/s
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Answer:
Two gears of module (4 mm) have (28 and 38) teeth. The
pressure angle is (20 0
) and each gear has standard addendum
of one module. Determine:
1. The length of arc of contact,
2. The maximum velocity of sliding if the pinion rotates at
(150 r.p.m),
3. The angle through which the pinion turns while any pair
of teeth is in contact.
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