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I came across this in a box of old electronics stuffed in the closet, which I never payed much attention to.

I can't say that I've seen another or that I've really looked, but I find this motor interesting. Max input voltage is 8.4v and max output power is 280watts. Motor timing is adjusted from the front of the can.

The motor looks pretty new but it's a shame the label is scuffed a bit....

Can anyone tell me more about these? Year, history, turns, anything etc...?

Not much help here, but semthing that I found/have:
Jirka

I've never seen one of those motors before. Interesting brush/spring setup.

That name is very familiar, I thought Mabuchi made many of the stock/oem motors that came with the cheaper kits.

I did a quick google search RJ. Looks like that model was used in electric helicopters.

RichieRich wrote:I've never seen one of those motors before. Interesting brush/spring setup.

I have a couple that are similiar to these with the same spring set-up. I will post up pctures of them when I get home.


@ Jirka, thanks for posting that attachment.

Even if it is a heli motor I think it would be a good motor for an offroad car. It feels quite strong, responsive and revs well.

The brush set up is interesting for sure. I was surprised when I saw a pro looking Mabuchi motor.

I had a better look. Check out Tamiya Dynatech 01R motors. Not just for helis then.

Looks the same Chris, just a different label. I'll have to search that to see if I can find a turn/wind and any other specs.

Thanks

Edit; here are some specs I found based on the motor you posted Chris.

Part Number:53001
Motor:Dynatech 01R
Year:1988
Usable voltage:7.2v - 8.4v
Torque at best efficiency:300g-cm (7.2v)
R.P.M. at best efficiency:22,000rpm (7.2v)
Current drain at best efficiency:12.5A (7.2v)
Best efficiency:73% (7.2v)
Turns:9019: 19 single - 0.9mm, 0017: 17 single - 1.0mm