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[The Old Fart]

Hi Guys,
Can anyone identify this motor, please?
Approx 60mm x 60mm

[ChrisF]

Are you sure it's 60mm diameter as that's big for a brushless motor in a boat and compared with the connector it doesn't look that big.

If it is that big it could have come from anything and be difficult to track down. Are you trying to get one to match?

[Martin (Admin)]

No markings on it at all?



https://youtu.be/qfIOpi2brfc?si=8GdjOJB-7RJvwPgK

https://www.dronetrest.com/t/brushless-motors-how-they-work-and-what-the-numbers-mean/564

[Tug Fanatic]

As a lot of motors are made by a small number of manufacturers and merely painted to the colour choice of the buyer photos of the motor ends would tell us a lot more than photos of the sides.

[The Old Fart]

Removed the motor from the Sea Queen.
Diameter 50mmlength over body52mmshaft 6mmfixings 30 mm diagonal
No Markings at all.Perhaps the missing wire might point to the problem!Motor connections are not the original.

[Colin Bishop]

I'd ditch it and buy something new. Somebody will be able to suggest a suitable motor for the Sea Queen.

Colin

[HMS Invisible]

It could be rewound by someone who had the time to do that.

[Martin (Admin)]

I'd ditch it and buy something new. Somebody will be able to suggest a suitable motor for the Sea Queen.

Colin

Agreed.... it does look a bit beat up.... buy something you know all the details off.

Conversely, power this one up, see how good it is!

 

[HMS Invisible]

I suggested give it to a competent person rather than bin it.
The damage that I see is purely cosmetic.
The key parts are bearings and shaft, core laminations, winding, magnets & housing.

 Lumps out the blue anodised part wouldn't matter. One turn could be taken out each phase with no new enamelled copper

[Dave_S.]

I had a 46" Aerokits Crash Tender that I bought second hand 2 or 3 years ago. I bought a 4258 500kv motor for it and planned to use 5 or 6s lipos. Ultimately, I decided it was too big for my spare room 'workshop' and to carry from car to lake when complete, so I sold the boat on. I am still hoping to find something a little smaller that I can use the motor for.
Your Sea Queen is very close in size to the large Crash Tender.


Quite honestly, these far-eastern brushless motors are really quite cheap, and in my experience very reliable, so in your position, I'd be tempted to buy a new one rather than trying to fix the one you have.

[The Old Fart]

I stripped it apart, slight modification to the housing let me get a soldering iron to the broken connection, Fingers crossed, will sail it on Sunday.

[HMS Invisible]

You could take the opportunity to measure the insulated diameter of the wire and note the turn numnber in case  a repair doesn't work.

You can parallel-wind strands of a smaller diameter if you find enough wire on a transformer.