Re: [CAD_CAM_EDM_DRO] Bearing Material

Hi Tim,

I didn't really explain what I was doing now that I have read the post I put
up. The material would be machined into a roller, with a ball-race inside,
running against an aluminium square section rail. The roller would have a
lip top and bottom to prevent up and down movement. The range of materials
available easily here is, Nylon 66, Nylon 6, Acetal, PTFE, Acrylic and
Tufnol. I'm sure there are many more but not available to me in small
quantities. Have never used plastics before I don't know of their machining
qualities. If I was to obtain material from the States it would be
expensive.

Terry

> Not quite as hard as bakelite, but consider looking at the PTFE filled
> Acetal (Teflon filled Delrin) referenced earlier. I have used it for small
> sleeve bearings and it works great. Very easy to machine and seems to hold
> up well. I got mine from McMaster Carr. Looking through the McMaster

catalog

> I also see a material called Self-Lubricating Garolite. It is listed as a
> woven glass fabric laminate with an epoxy resin and then the choice of
> graphite impregnated or molly-filled and coated.
>
> Tim
> [Denver, CO]