http://www.mrcarbonbrush.com/Lemac_Motor_for_AcornBrooks110120_L59/p2644628_16528384.aspx
mrcarbonbrush has all stair lift brushes
eddie, October 2016
I was going to answer but can't be bothered now, If you can't be bothered to explain your question so it makes sense and gives us an idea we won't bother answering.
xxx, September 2016
edit
I can answer this question...
how do I fix our Bison Beede stair lift, it goes up ok but will only inch d?