Gear Ratio

Examine the image of the gear combination and determine the end ratio.  Express this ratio as a single number. 
Gears = 36T and 60T

• 1.67
• 2160
• 0.6
• 90

Examine the image of the gear combination and determine the end ratio.  Express this ratio as a single number. 
gear tooth # = 12 and 36 and 60

• 8
• 2
• 15
• 120

Examine the image of the gear combination and determine the end ratio.  Express this ratio as a single number. 
Gears = worm and 24T Helical

• 48
• 576
• 9.6
• 23.04

Examine the image of the gear combination and determine the end ratio.  Express this ratio as a single number.  
Gears shown = 60T, 12T

• 72
• 5
• 720
• 0.20

Examine the image of the gear combination and determine the end ratio.  Express this ratio as a single number. 
Gears = worm and 24T helical

• 3.4
• 168
• 72
• 24

Examine the image of the gear combination and determine the end ratio.  Express this ratio as a single number. 
Gears shown = 60T, 24T , 60T

• 1
• 144
• 2.5
• 1440

What is the function of the smaller gear?

• Makes the output gear turn slower
• Makes the output gear turn faster
• Makes the larger gears turn in opposite directions.
• Makes the larger gears turn in the same direction.

If the motor has an RPM of 500 what RPM will the Driven gear be rotating?

• 24 RPM
• 576 RPM
• 0.18 RPM
• 0.86 RPM

If the large gear has an RPM of 86, what will the small gears RPM be?
60T and 36T

• 1.67 RPM
• 51 RPM
• 125 RPM
• 143 RPM

If the small gear has an RPM of 110 what will the RPM of the large gear be?
60T & 12T

• 22 RPM
• 55 RPM
• 625 RPM
• 550 RPM