Where to buy Bosch 750's or alternatives

**mattsdragons** · 28th March 2011, 07:11

Since my motor from the wheel chair is useless im trying to find Bosch 750's or alternatives which I'm not sure what they are.

What are the alternatives to 750's or were can I buy probably second hand 750's?

**beast** · 28th March 2011, 10:01

http://www.ellis-components.co.uk/index.htm

STONEBROOM INDUSTRIAL ESTATE
STONEBROOM
ALFRETON
DERBYSHIRE
DE55 6LQ
ENGLAND

TEL: 44 (0)1773 873151
FAX: 44 (0)1773 874645
email: sales@ellis-components.co.uk

**woody** · 28th March 2011, 10:04

I believe you'll find that they only offer a Brazilian alternative.

http://www.kalatec.com.br/produtos/moto ... F006B10269

http://www.kalatec.com.br/motores-dc...em/download/28

**beast** · 28th March 2011, 11:31

hmm pass

**typhoon_driver** · 28th March 2011, 15:36

http://strickenone.proboards.com/index. ... thread=491

A list of alternative motors. Typhoon robots used the 800w iskra motors. Very nice motors, smaller than a bosch weighing only 2.5kg and completely sealed. Not sure how the like for like comparison goes though.

**mattsdragons** · 28th March 2011, 15:40

how do things like car starter motors etc and wiper motor compare?

are they usable for robots? and can i get some ok speed out of them?

**joey_picus** · 28th March 2011, 16:09

Starter motors...if you want lots of power and pretty good speed and torque at low voltage, they're great. If, on the other hand, you would like to go in both forwards and backwards directions without modifying the motor, use sensibly sized wires as opposed to ones that resemble very fat snakes, draw currents under 200 amps, use batteries weighing less than about 15-20 kilograms, and have proportional speed control without having to use massive 2kg each 4QDs, then you might want to look elsewhere :P

Windscreen wiper motors have been used in featherweights and been found to be a bit slow in them...heavyweights have used them, but you end up with speeds somewhere around 2-4mph and not a great deal of torque as they're about 50 watts maximum, so I'd avoid them too.

(I know the Bosch 750 was often described as a 'truck windscreen wiper motor' but it isn't, it really isn't :P)