Small plastic gearbox 90 degree (right angle drive)

Anyone know where I can get these? The idea is to transfer a small (300 series) motor drive through 90 degrees. A small reduction (3:1 say ) would be handy but not essential

The gearbox needs to be quite small (20mm cube, light, rustproof and cheap. (I need about 4) I know I don't want much!

Nothing on ebay. Nothing on MFA. Any other suppliers you can suggest?

David

Thanks Richard!

That looks very promising - I will get one and have a go with it.

David

My Tamiya gearbox has just arrived and looks very promising. Thanks for the tip.

A nice bit of kit but it needs assembling and why is everything smaller than the way you imagined it!

David

Now assembled.
A nice little motor and gearbox combination that fair whizzed around when I applied 12v to it. (No voltage mentioned in the instructions.) Smoke appeared 30 seconds later! Now dead.

Oh dear what do they run these Tamiya vehicles on a couple of pencells?!

David

That motor is rated for 3 volts, 12 volts is overpowering it a bit!

http://www.technobotsonline.com/tamiya-70093-3-speed-crank-axle-gearbox.html

Have you considered gearsets from slot cars? They usually use crown wheel sets, giving the 90 degree angle, and tend to be geared down about 2 or 3:1.

You can get slot cars in many scales from 1/24th down to 1/72nd, so you should be able to find gears small enough.

Don't know if you sorted this but I use rc helis. 450 size or smaller use belt drive tails that have 90 degree gearbox. Might work?

David give E.M.A model supplies a try, ask for a catalogue it is free, but they do have a £15.00 min order.

Thanks for the suggestions, chaps. (EMA is a new one to me and looks very interesting.)

In the end I bought 4 of the Tamiya gearboxes for the Nordenfelt project. They look fine (with or without the 3v motors!) They have not been fitted yet while I get on with the fibre glassing. Gorgeous weather for everything!

David