Two involute gears have a pressure angle of 20°. The gear ratio is given to be 3. The module is 5 mm and the value of addendum is equal to 1 module. Determine the minimum number of teeth on each wheel to avoid interference, if the pinion rotates at 100 rpm.

Two involute gears have a pressure angle of 20°. The gear ratio is g

1.	Two involute gears have a pressure angle of 20°. The gear ratio is given to be 3. The module is 5 mm and the value of addendum is equal to 1 module. Determine the minimum number of teeth on each wheel to avoid interference, if the pinion rotates at 100 rpm.
A.	T = 51, t= 17
B.	T = 45, t =15
C.	T = 60, t =20
D.	T = 54, t = 18
Answer» C. T = 60, t =20

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