Finding Torque Ratio for Gears with 3.2:1 Gear Ratio

[davidaltenbur]

Here is my question that I haven't been able to solve.
What would the torque ratio be for a set of gears with a gear ratio of 3.2:1?
And how did you come up with the answer?

 

[lzkelley]

what does a gear ratio mean?
If you apply a torque to a set of gears how does the gear ratio effect that?

 

[davidaltenbur]

This is my question.Two gears have a turning ratio of 3.2:1 What is there torque ratio ?
.32:1
1:3.2
3.2:1
32.0:1
And how would you calculate that??

 

[davidaltenbur]

By the way I am a 55 year old Automotive service tech so I don't have homework. Just trying to resolve a issue.

 

[rcgldr]

If the gear ratio is 3.2:1, then the torque ratio is 1:3.2. The output shaft will have 3.2 times the torque of the input shaft if the input shaft rotates 3.2 times every time the output shaft rotates 1 time. Power remains the same except for drivetrain losses.

 

[davidaltenbur]

Thank you for your time Jeff