A spur gear pinion and gear shown on a drawing, have a diametral pitch of 12. The pitch radius of the pinion is 1.500inches and the gear ratio is specified to be 1:3 on the print. What is the expected pitch diameter of the gear?
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Answer:
Obtain the values of the Lewis form factor Y (table 14-2) for Pinion teeth and gear tooth .
Calculate the diameter of pinion.
Here, N in the number of teeth, and p is the diametral pitch.
Substitute 17 for , and 12 for p.
Calculate the diameter of gear.
Substitute 30 for , and 12 for p.
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Answer:
80mm
Step-by-step explanation:
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