Question

What is the final gear reduction of a compound gear reduction of 36 to 12 for the first stage and 60 to 12 for the second stage?

A. 0.067
B. 0.533
C. 8
D. 15

Answer 1

8

Step-by-step explanation:

Gear reduction = driven gear teeth / driving gear teeth

First stage reduction :

Driven gear teeth = 36

Driving gear teeth = 12

36 /12 = 3

Second stage reduction :

Driven gear teeth = 60

Driving gear teeth = 12

60 /12 = 5

First stage + second stage

3 + 5 = 8