Page 1 of 1
carbon brushes
Posted: Mon Apr 07, 2014 8:38 pm
by charlie_morris_minor
the bushes on my sewing machine are wearing low, the company that made the motor appears to be long since gone.. can any one recommend a supplier of small carbon brushes / has any experience of sanding down bigger brushes to fit, as seems to being suggested on some ebay pages..
Re: carbon brushes
Posted: Mon Apr 07, 2014 9:55 pm
by bmcecosse
Sanding down should work well enough. Have you searched ebay for the size of brush you need?
Re: carbon brushes
Posted: Tue Apr 08, 2014 9:29 am
by M25VAN
What is the model of machine/motor? There seems to be a few places on the internet selling brushes. Can you measure the size of the old brushes as something generic may fit. Sanding/filing will work, I used to do this to pencil leads for my minic slot cars. Oh dear, I feel a trip to the loft coming on.

Re: carbon brushes
Posted: Tue Apr 08, 2014 3:38 pm
by katy
If you sand/file brushes down to fit, be sure that the carbon composition is quite similar to the originals. Depending on application some brushes are harder than others. A prime example is the brushes in a starter motor compared to a dynamo. (A generator in my lingo).
Re: carbon brushes
Posted: Tue Apr 08, 2014 5:57 pm
by charlie_morris_minor
the brushes are 5/32" x 5/32" x ? with a 1" spring.. although i do believe i have found the correct size now just trying to find them at the correct price..
Re: carbon brushes
Posted: Tue Apr 08, 2014 9:02 pm
by charlie_morris_minor
Thanks for all your help but my sewing machine motor died tonight! or at least i thought it did until i decided to finish what i was doing by hand cranking the wheel only to find it was very stiff! a quick service of the sewing machine and all is working fine again

, thank goodness. I still need to get some new brushes but the need for them is not so desperate.
Re: carbon brushes
Posted: Tue Apr 08, 2014 9:59 pm
by bmcecosse
It's NEVER the brushes........

Re: carbon brushes
Posted: Wed Apr 09, 2014 2:38 pm
by charlie_morris_minor
bmcecosse wrote:It's NEVER the brushes........

funny you say that.. i was thinking of wording my last post along the same line
Re: carbon brushes
Posted: Wed Apr 09, 2014 4:49 pm
by tysonn
I see what you've done there Charlie ;-).