- Joined
- Dec 27, 2017
- Messages
- 340
I am getting ready to place an order for some involute cutters in the 12DP size. I plan to make a little spur gear reduction drive for one of those 22hp Harbor Freight engines. My question is how to find if the size of gear (assuming its 4140 and has been heat treated) will hold up to the torque demand or not. I would try to stay away from the 14 1/2 deg PA and go for the 20 deg PA for some more root strength if I can find the cutters.
My intuition says I should make the gears with as large a pitch circle as I can without it getting ridiculous so the gear teeth are not torqued on as much. I do have an understanding of basic physics and vector algebra. But it would be nice to confer with someone that has run these calculations before.
My intuition says I should make the gears with as large a pitch circle as I can without it getting ridiculous so the gear teeth are not torqued on as much. I do have an understanding of basic physics and vector algebra. But it would be nice to confer with someone that has run these calculations before.