gochenour799
Member
- Joined
- Sep 1, 2010
- Messages
- 47
I need help calculating a reducing gear ratio. Example.. I have a gasoline motor I want to run @ 2000 rpms and a pump that needs to be run a 1250 rpms so I need to reduce the out put by putting a small gear on the motor and a larger gear on the pump , with chain in-between them . I can't figure out how to figure the size of the gears . Say 10 teeth and 20 would that be 50% reduction ?