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Motor identification.

Oh dear - they look like some Johnson can motors. Johnson is a company which specialises in industrial DC motors for power tools, car windows, etc. It does a bewildering variety of them - as do many other companies, but I tend to think of them as generically 'Johnson'. See https://www.johnsonelectric.com/en/product-technology/motion/dc-motors/automotive-dc-motors/low-voltage-dc-motors They are often hard to identify, and will be good for the thing they are designed for, which may be nothing like a . In particular they may be designed for intermittent use, low or high torque, high drain...or anything else. They may be good for a boat - they may be useless. And it depends on the boat - if they are ex-drill motors they may rev quite fast... Check the number of poles - more than three and the motor may be a better quality one. Do the revs on your battery match what you want (between 5000 and 10,000, usually)? Is the no-load drain below 1A? Then the motor might be useful. Otherwise, see the video below: https://youtu.be/pNw0IWrn0hU I recall that Mayhem were very scathing of unknown can motors a little while ago - spool down to the bottom of this page https://www.modelboatmayhem.co.uk/Common/Electrics/How%20Fast.htm P.S - does the one on the left look like a turntable motor?

5 years ago by DodgyGeezer