I was wondering if there are any cheap plastic gear suppliers that the
members of this newsgroup favor? I'm interested in buying a few dozen
gears of different sizes, and wondering where I can get the best deal
(maybe just a couple grab-bag kits?). I saw a few places like jameco,
kronosrobotics, etc...but was wondering what others are out there.
Thanks in advance!
http://www.smallparts.com is still excellent. You can get the gears and or
sprockets you really want from them too.
Another excellent source is http://www.sdp-si.com /.
I think that between these two sources, why bother with the rest.
Well, at first it appears to be expensive. But let's see. . .
How many hours, days do you spend searching for a set of gears that would
work for your application?
How much is that time worth to you?
You happen to find a set of cheap plastic gears that might work, but the
pinion or motor gear doesn't fit your motors.
Plus the shaft holes in the rest of the gears you got are too big. Do you
machine up some bushings or adapters then?
You could get someone to machine a gear for you, but that really costs big
time. Unless you know how to machine
Yeah you could get a set of cheap plastic gears for say $5.95 a set, but the
odds aren't good that it'll work with your motors.
It always seems the motor shaft doesn't mate up with any of the pinoin
So personally I think it's cheaper actually to buy just what you want, not
to try and rig up something to maybe work.
If your looking for really tiny bore shaft sizes down to 0.6mm, then
www.didel.com is usually the place to go.
All my little pager motors only go down to .7mm I haven't seen any at .4mm
or .5mm yet.
The above mentioned small parts stores do have metric sizes, but not that
But they do sell bronze, steel and plastic gear and pinion stock so
you could drill your own bore size. But drilling .5mm bores just right is
Another interesting source of small gears is to buy a RC servo replacement
But drilling the holes for the gear drive train can be very tricky.
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