Low Cost Planetary Gearbox Source...

[Kevin Sevcik]

About the pinions splitting. I think it's only a problem with the 5:1 pinion since it's so small. I split the first one pressing it on the shaft and didn't even notice till the tranny wouldn't work under load. My solution was to grab a new pinion and a .1247 reamer I had from the NBD mod we did last year. I ran it through with a hand drill and it pressed on fine after that. If you can actually chuck up the pinion in a lathe, I'd use a .1250 reamer, as that's what I ended up using on the FP last year when I could chuck the dewalt pinion.

Second comment. Has anyone else gotten one of the trannies with a crooked keyseat on the shaft? We've got one that takes a distinct jog to the side halfway down the keyseat.