Final ratio: 1:1

Speed and torque are unaffected.
Show output for How many: motor(s):

Teeth Gears

1

8

12

14

16

20

24

28

36

40

56

60

140

168

Planetary gearing consists of three elements: a sun gear, a ring gear and a number of planet gears mounted on a carrier. One of these elements is always fixed, one is an input and one is an output. Select gear sizes below and hit CALCULATE to see ratios for all three cases.
Sun gear: Ring gear:
Input Output Fixed Ratio
Sun Carrier Ring ?
Carrier Ring Sun ?
Sun Ring Carrier ?
The + marks the position of your driver gear's axle. Click an empty pin hole to select the position of your follower gear's axle and see the available gear combinations:
Units: