[modeleng] Nylon material as a bearing surface

I started work tonight on the driving truck for "Topsy" a petrol 
electric.  The driving truck is slightly different to the norm in that 
it has a single bogie and pivots on the back of the locomotive.  Topsy 
is an 0-4-2 so there is little risk of the (human) driver taking weight 
of the (loco) driving wheels through a moment across the coupling.

Anyway, the bogie has two roller bearing that act as the rolling surface 
when turning.  I have welded some steel in as the bearer they act 
against, but I could really do with the body being about 1/2" higher (to 
clear the flanges on very tight corners.

What I plan to do is add some nylon to act as the bearing surface as it 
will give me the additional height and also require little (if any) 
lubrication.

What I am interested in is the source of this nylon.  Can you see any 
reason why I can't get a cheap nylon cutting board and use that?  Is it 
any less dense than the nylon you would get from the usual sources.  If 
it was less dense, would it really matter?

Cheers

Peter



MODEL ENGINEERING DISCUSSION LIST.

To UNSUBSCRIBE from this list, send a blank email to, 
modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.

Other related posts: