1941 City of Los Angeles

[Jay Criswell]

Maybe it's time for sealed ball bearings??!!

Jay

[webenda]

Miniature sealed ball bearings are usually press fit on the axle and in the housing. Not a problem during assembly because you can press on the inner and outer races. Disassembly often damages the bearing.

Of course it does not have to be that way. When I tried roller bearings on my slot car axles I made everything slip fit. Seemed to work fine.

I wonder if any museum display maintenance shops have tried sealed ball bearings?

Here is a list of common sizes for those not doing historically correct restoration: => http://www.nationalprecision.com/miniat ... d_fits.php

[ScaleCraft]

Wipers. We have experienced with higher current draws pitting of the races when you try to pick up through ball bearings, sealed or naught.
Just a Turner.

[webenda]

Wipers, correct. I like wipers on the back of the wheels where less dirt accumulates.



But for historic restoration, such as the City of Los Angeles, Maroon is not modifying bearings or wipers, just replacing what is worn.
The original parts might be better than any of our suggestions, originals seem to have lasted a long time.

[J. S. Bach]

That looks like an AHM design, maybe the C-Liner?

[webenda]

That looks like an AHM design, maybe the C-Liner?

Plymouth switcher. I think the mechanism from the C-Liner was used to make these.

[ScaleCraft]

When you upgrade to sealed ball bearings, then you also do wipers.

[J. S. Bach]

I thought that it was a decent design but it needed (needs?) a better motor.

[R.K. Maroon]

(In generic Germanic accent):

"Ya, that AHM design shows all the marks of fine Austrian engineering. It's true though that the motor was undersized"

[sarge]

Si, butta da AHM wasa de Rivarossi. Atsa Italian, no?

Atlas vas von der Roco gemacht, Ja?

(in pigeon EU-Grin!)

[R.K. Maroon]

(again is same accent):

"Ya, so obviously dey had an Austrian engineer vwerking for them. It wuz der cheapskate in purchasing dot bought dot toy mo-ter"

[sarge]

Oh, did they now?

[R.K. Maroon]

Ya, das is myna gestory and ich vill gestooka mit es

The postman brought me some NOS cloth-covered wire this morning for my E6 restoration. This will look sharp.


https://dl.dropbox.com/scl/fi/nyeiok9o8whh1ic4eyr22/Wire.jpg?rlkey=h5s83w8ae0nrznd84hd29ntnk

So, doesn't anybody have an opinion to venture regarding how much play in the axles and worm shaft is acceptable?

Jim

Edited to repair photo link

[Jay Criswell]

Jim,

At first glance I thought you'd wised up......looked like det cord to me.

A few caps, some C4, and you're problems would be solved!

Jay

[R.K. Maroon]

Yes, but I'd want to take out the whole closet full of them and go find a hobby that's not so plagued by wise guys.

AND WHAT ABOUT THAT AXLE PLAY?