Pittman motor ball bearings

You just have to remove a bearing and measure OD, ID, and thickness. Then just go to a place that sells ball bearings and search on the dimensions. I would recommend a shielded bearing which has a metal cover on both sides to hold the lubricant in vs an open or sealed bearing. The latter has rubber/neoprene seals but slightly higher friction.

One source that is easy to use is McMaster Carr. Once you find the size it will have an associated bearing number. Using that number you can search the web for alternate sources. Before doing a search look closely at the bearing as it may already have a number on it.

btw you posted on the wrong forum so expect this to vanish.

Pete

You would need to know which bearings are inside these motors. Pittman used a couple different sizes. These are sealed bearings that usually are good for the life of the motor. Unless you have one that’s noisy or has play, there’s no need to replace ....ever,...OTOH, the oilite bronze type bushing can fail from lube starvation. But the ball bearings never need servicing. Hope that helps,..

Pat

Being a bearing man I agree with Pat. If there’s no roughness or noise  leave them alone. If they are sealed they are lubed for the life of the bearing. If shielded then place a drop of oil at the edge of the seal. Other than that they are the miniature type mostly plated or stainless. Measure ID, OD and width. May also be flanged.

But you will want to go with the 9433 motor, so it is moot.  The performance difference due to that one little digit is dramatic.  That is probably why they no longer recognize a valid motor number.

I agree with those above - the bearings should outlast the motor.  They are sealed, so age is irrelevant.

Charlie Pittman Jr. told me personally - never use the bronze bearings in any application involving side loads - like Lionel was doing back then.  The difference was two bucks per motor.