Gear Ratios Flashcard

Front

What is the formula to calculate gear ratio using the diameter of the gears?

Back

gear ratio = (π × diameter of input gear)/(π × diameter of output gear)

Front

What is a gear?

Back

A toothed wheel that can change the direction, torque, and speed of rotational movement.

Front

What is the gear ratio of a 12-tooth driver gear and a 24-tooth driven gear?

Back

2:1

Front

What is the gear ratio of a 40-tooth driver gear and a 20-tooth driven gear?

Back

0.5:1

Front

What is the gear ratio of a 15-tooth driver gear and a 45-tooth driven gear?

Back

3:1

Front

What does a gear ratio of 1:1 indicate?

Back

The input and output gears rotate at the same speed.

Front

How does increasing the number of teeth on the driven gear affect the gear ratio?

Back

It decreases the gear ratio, resulting in slower output speed and higher torque.

Front

What is the relationship between gear ratio and torque?

Back

A higher gear ratio increases torque but decreases speed.

Front

What is the gear ratio of a 10-tooth driver gear and a 30-tooth driven gear?

Back

3:1

Front

What is the significance of gear ratios in mechanical systems?

Back

They determine the speed and torque output of the system.