small differential gear source?

Something like this?

Boston Gear catalog? Grainger or McMaster Carr?

Go see your local lawnmower repair shop and ask to look at his junk riding mowers.

According to :

Have you checked with PIC? Theirs may be even smaller than what you want. They make all kinds of precision gearing, and I remember seeing differentials in their catalog last time I had one.

Hmm ... are there differentials in riding lawnmowers? That might be of the size you need, if so.

Good Luck, DoN.

Depending what you want, you can make a "differential" out of only spur gears. This can take up very little space, & you may have spur gears in the junk box.

Sterling Instruments

Hey Doc, I also am looking for a small diff. about the size you mention. I have been through all the sources mentioned here but no luck.

Have you found anything yet?

Cheers,

Jacques

I have a bunch of small differentials from Arch Instrument, North Quincy, Massachusetts. Some are straight gears, some bevel gears, some spiral bevel gears. All are quite a bit smaller than what you seem to be looking for, but they may make larger ones. Suspect they are pretty expensive, though.

John Martin

I have a few softball sized diffs from "deluxe" snow throwers and cheap riding tractors. Ariens, Canadiana, and many other models used them. Can't remember the maunufacturer.

Might or might not be what you're looking for, but try this:

Peerless See

Snapper self-propelled mowers have a nice small unit, even has a belt- drive. Not for go kart speeds, though, or moving much beyond a 100 lbs or so. Check your local dealer's junk pile.

Stan