Winch motor brushes

[6ply]

Have you tried AliExpress?

For example,

2PC Car Starter Motor Copper Carbon Brush 9*20*22MM Starter Motor Brush Starter Motor Two-wire Carbon Brush - AliExpress 34

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a.aliexpress.com

 

[6ply]

Lots to choose from

 

[6ply]

I would probably try grinding them on the surface grinder for a nice finish. Not that I've ever tried.

 

[Melvyn Best]

When I have needed to reduce the size of any new brushes Ive done it by rubbing on a sheet of emery on a flat surface..A tip I was given by an auto electrician when fitting new dynamo/ alternators was as soon as you start the engine turn on all electrical devices to bed the brushes in quicker rather than just polishing the contact area which increases resistance. The same principle could be applied to a winch?

 

[hotponyshoes]

When I have needed to reduce the size of any new brushes Ive done it by rubbing on a sheet of emery on a flat surface..A tip I was given by an auto electrician when fitting new dynamo/ alternators was as soon as you start the engine turn on all electrical devices to bed the brushes in quicker rather than just polishing the contact area which increases resistance. The same principle could be applied to a winch?

I can see how you would do that with an alternator easily enough but how do you do it with a winch?
Unwind the rope fully before you start it up and drag the car up a hill or something?

 

[Melvyn Best]

I can see how you would do that with an alternator easily enough but how do you do it with a winch?
Unwind the rope fully before you start it up and drag the car up a hill or something?

That makes sense, I’ve had a couple of problems with reconditioned alternators that fail to charge after a very few miles due to the brushes glazing