k Flashcards
Gear ratio
output teeth / input teeth
larger driven gears
deliver less speed more torque
Smaller driven gear
is faster, but delivers less torque
Driven gear will move
in the opposite direction of drive gear.
idler gear(s) does not change
the gear ratio, but can change output direction
for odd number of idlers
output will turn in the same direction as input.
What kind of motion is applied to the input gear in a bevel gear mechanism?
rotary
What kind of motion is transmitted to the output gear in a bevel gear mechanism?
rotary
What is the angle of the input shaft compared to the output shaft?
90 degrees
Is the speed increased, decreased, or constant?
[Depends on gears: smaller output gear turns faster.]
Is the torque increased, decreased, or constant?
Depends on gears: smaller output gear decreases torque.]
If the input gear was smaller than the output gear, how would that affect the speed and torque?
Output speed would be slower, output torque would be increased.
Is the direction of the output reversible in a bevel gear mechanism?
Yes
Is the flow of power reversible? (Can you make the input shaft turn by turning the output shaft?)
Yes
