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Author Topic: Gear for 5mm stepper motor shaft  (Read 1745 times)
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Does anyone know of a good supply of gears that would fit a 5mm stepper motor shaft? I want to gear down a stepper motor by at least 13.5:1 and the shaft size is 5mm diameter. Most gears I find are either 4mm or 6mm and designed for standard DC motors.

« Last Edit: November 05, 2008, 10:50:12 am by zooto68 » Logged

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I was looking for that the last 3 months without success. At the end I went to metal manufacture and got the motor shaft reduced to 4mm diameter  smiley-wink
If you find ready-to-buy solution, please let me know.
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I have had good luck using gears from high-end rc cars.  I think I picked up a couple of gears for a 5mm shaft at hobby-lobby: http://www.hobby-lobby.com/  not to be confused with: http://www.hobbylobby.com/ !!!


Good luck, and tell us if you find anything else that works

salernos
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I have since found these guys - http://www.technobots.co.uk/acatalog/Online_Catalogue_Gears_365.html - that have a selection of gears with 5mm bore. They also have a 5mm to 6mm shaft adaptor meaning a much larger range of 6mm bore gears can be fitted.
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Looks great, but they only ship to UK, so bummer for those of us in the states.

Cool find though.  Their prices seem really low.

salernos
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I'm pretty certain I saw a US site on my travels, but didn't keep the link. They were a bearing and gear company, not connected to RC or robotics.
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Servocity makes clamping and set-screw hubs for 5mm shafts.  Pricey, but they work great =)  You can then either drill out your own gears to mount to their hubs, or buy their hub-mount gears.

Here's a link: http://servocity.com/html/hubs___adaptors.html

!c
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