- Joined
- Sep 29, 2017
- Messages
- 2,295
I agree. That is why I don't understand why they are different. Especially the one on the drive,it is not as if someone made it smaller than 1/4",it looks like it was made 13/64" and the gears 1/4".Keys should match the slots. So 0.250". Not 6mm. You want a snug fit, not rattling around.
Narrow keys contribute to wallowing out the slots. The key should immobilize the gear from rotation on the shaft.