Gear

Reasons to use a gear:

  • Reverse the direction of rotation 
  • Change the speed of rotation 
  • Move rotational motion to a different axis 
  • Keep the rotation of two axes synchronized 

Gears are read left-to-right when counting ratios (left gear is bigger in a 2:1).

Gears are manufactured such that tooth count is more accurate than circumference in determining gear ratios.

To create large gear ratios, use a gear train.

Worm gears function as “one tooth” gears
and flip the axis of motion 90°.

A planetary gear system uses the same axis for both input and output gear
and is very rugged.

No comments:

Post a Comment