933 Bottom Roller Replacement???

I have a bad bottom roller on a 42A 933. I have it off and apart but can't tell what used to be in there. Was there a bushing and a bearing and a seal? All that is there now is the bushing (sleeve) that bolts in with 6 bolts on each end and the shaft that goes through the middle and the end caps. The inside of the bushing that is there is about 1" in diameter bigger than the shaft diameter so I'm wondering if its worn that much or if a bearing goes in there. Is there anywhere to buy a complete roller and how much? How much should the bushings/bearings be and is there a cheaper place to get them than a Cat dealer?

Thanks.

A new roller assembly from my local Cat dealer is $295. It would cost more than that to rebuild mine it is in rough shape. Anyone know of a place that might have a used one, I'm in Albany, NY. Thanks.

Mac, finning supply exchange units in the UK Have you tried your local dealer ?
Gordon.

The 42A uses D4 undercarriage. Same rollers as D4, C, D, E, 933E, F, 11A2595-up, 955 12A1-5792. That's not a bad price from Cat.

Try Industrial Tractor Parts--they sell berco--got my 941b rollers from them