Here's more info on the single wheel hub and fitting them on P-30 spindles, the inner bearing is the problem.

Here's what I found about bearings....
Already knew outers are the same NAPA 15103-S so we'll just be talking about the inner wheel bearing, the big one.

The single wheel hub to use is NAPA part number 4885580.
It uses inner bearing "Chicago Rawhide BR35" same as "Timken SET45" same as "Timken numbers LM501349 cone and LM501310 cup"
The ID is 1.625" and OD is 2.891"

The stock P30 hub/spindle takes inner bearing
"Timken numbers 26884 cone and 26823 cup"
ID is 1.688" and OD is 3.000"

Ideally there would be a bearing cup with the small 2.891" OD that fits the single wheel hub and a compatible cone with the large ID of 1.688"

It has been suggested that the following bearing may be a partial solution.
"Chicago Rawhide BR50" same as "Timken SET47" same as "Timken numbers LM102949 cone and LM102910 cup"
Has the correct OD of 2.891" and the ID is a larger than needed at 1.781"


So two or four options,
1: The spindle can be turned 0.063" so the stock single wheel inner bearing SET45 fits. If a large radius is kept in the corner strength shouldn't be an issue after removing only 1/32" per side.
2: The bearing SET47 could be used. It has the same 0.770" assembled width as SET45. To fit on the spindle a thin wall bushing would need to be made with 1.688" ID and 1.781" OD... That's only 0.093" difference so 0.0465" wall thickness. One option if just making the sleeve the right size to start with doesn't work is to shrink it on the spindle and then turn/grind the OD to final dimension.
3: find a suitable conversion bearing with 2.891" OD and 1.688" ID (No luck so far)
4: Have that bearing made; which apparently is possible but at what quantity and price?

More on option #2!
Parker shaft wear sleeve number WS1976 with ID of 1.687", OD of 1.813", and 0.625" wide could be a great starting point, still needs to be ground or turned down about 1/32" after installation. (could not find yet a another different bearing that would work without turning the sleeve)

Grigg

Last edited by Grigg; 04/23/2013 10:54 AM.
•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
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