Small Gears ?
Twisted Pair
Posts: 177
Anyone know where to find small spur and face/crown gears ? 3/4" OD or smaller is the size that I'm looking for.
Thanks,
Twisted Pair....
Thanks,
Twisted Pair....
Comments
I don't see crown gears, but I do see miter or bevel gear sets.
you can look at mcmaster-carr for the same kind of thing too.
Look around a bit.
(Can Beckius do gears?)
-Phil
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Post Edited (Phil Pilgrim (PhiPi)) : 7/17/2008 4:48:36 AM GMT
Buying gears in small quantities really gets hugely expensive. The problem is that the industrial·suppliers have to keep a few of everything in stock or build up a huge network. That isn't easy.
The Japanese toy manufacturer Tamiya seems to be the only source for both. They have complete gearboxes of several sorts. Some are two independent axles, some are one axle, and there is even a worm-drive. They have devices with spur and crown gears. If there is an outlet that sells Tamiya, they may also have sets of spur nd crown gears to R/C autos as hobbyist like to play with different ratios in competitions.
Everything about gears is related to torque. So you are going to eventually have to consider the shaft size as well as the gear AND how the gear is fixed in place.
Low torque and tiny shaft, hobby motor are often friction fit, but some have set screws.
Higher torque and tiny , like the propeller on R/C electrics connect with a collet.
1/2 horsepower and 1'2" shaft, like V belt drive connects with a set screw or two.
Extreme power moves you up to shafts and gears with a keyway slot.
These days, you can handle low torque and medium torque with a glue. Locktite has several different strengths and the strongest may be useful for setting gears.· Epoxy and super glue are other choices.
Of course with all those gears and shafts, you may want bearings. For small stuff, just use a bronze insert bearing as ball-bearing are quite expensive.
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Post Edited (Kramer) : 7/17/2008 1:52:36 PM GMT
Leon
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Twisted Pair....