When evaluating the inner diameter of ball bearings for trucks?
I am engaging in an experiment to minimize the friction on my WBB 2400 series passenger cars. If it were not for the huge frictional force from the cheaply made trucks, I believe these reproduction cars would be a big hit with their otherwise colors and graphics. So I am attempting to add ball bearings to the outer axle and attach it to the die cast side frames and hopefully minimize the friction of these trucks.
Replies sorted oldest to newest
.05mm = .002". As my shop teacher used to say you could drive a truck through that. In this case your axle diameter is probably off by more than that. Measure the axle and try to get as close to that as possible.
Pete
The obvious answer is, the difference is 0.050”
that really depends on if it’s 0.05mm too big, or 0.05mm too small... to quote an old mechanic friend of mine. “if something is 1/1000th of an inch too loose no one will know, but if it’s 1/1000th of an inch too tight, everyone will know.”
I have oiled the truck/axle ends on some of my stuff and it helped a lot. It would be worth a few minutes of time to try oiling them before going through to process of adding bearings.
Rockershovel posted:The obvious answer is, the difference is 0.050”
Actually, the difference is 0.002", did you read the previous post? See below, it's 0.05mm difference.
Norton posted:.05mm = .002". As my shop teacher used to say you could drive a truck through that. In this case your axle diameter is probably off by more than that. Measure the axle and try to get as close to that as possible.
Access to this requires an OGR Forum Supporting Membership
