933G tranny bearings

Try one of these...
http://www.machinerytrader.com/list/partssearch.aspx?partnum=4K560

http://www.seekpart.com/autopart/bearing/4K560.html

http://www.yesterdaystractors.com/cgi-bin/viewit.cgi?bd=crawlers&th=70856%253E

From my 40 plus years of working on heavy equipment I have never came accross a special bearing. All bearings that are used are standard bearings I have never ran across a special one. Your bearings should have some manufacturer marks on them. There are 3 if not more bearing manufactures and any bearing shop would be able to find your bearings for you and Cat is usually competetively priced. If you are already in there now is the time to change them. Good luck. Charlie

There was one I ran into. It was a self alligning double tapered roller bearing for the top transmission shaft of 3T D-7's. It was made by Terrington(sp?) especially for CAT and the only place to get it was from CAT. You could get a kit with all the other bearings needed for the transmission from some other source at a cheaper price but you had to go to CAT for that one bearing.

The very early D-7's had a single ball bearing on the clutch end of the top transmission shaft, which was later replaced by a single roller and then around 3T 4500 there was a big change made in the later models with the afore mentioned bearing arrangement. They also had a field changeover kit that included the double tapered roller bearing, a cage for it and a new top transmission shaft. Made a world of difference in the transmission life for the old dry clutch tractors.

Hi Team,
be very aware that Caterpillar changes the Standard Specification of bearings it uses in certain applications.
They can have the press fit increased and therefore need more clearance built into the bearing at manufacture.
Others can have more or less running clearance or even pre-load built in.
There are always extra numbers/letters after the standard bearing house part numbers that indicate these differences.
A lot of bearing houses are not aware of this fact. I know of Dealer customers that purchased standard bearings from bearing houses and suffered early failure due to wrong specification bearings being used.

As an example Caterpillar have for years made their own fuel injection systems etc as they can have control over the ongoing modifications at short lead time that are needed to improve their product.

Cat often buy out producers of supplies to meet their own specific needs.

Over the years Cat started to use out sourced parts/assemblies and we had trouble at The Dealer with substandard parts being supplied by these people and long lead times to rectify or introduce Cat driven improvements.
Cheers,
Eddie B.

At the dealer I worked Cat bearings were always used,but feedback from customers I understood that Cat used odd in between sizes that could not be bought at a bearing shop,this appeared to be common knowledge back then in the fifties and sixties,I think the bearing co made them especially for Cat,measure up the bearings you want to replace,check on line for an equivalent,they may be available nowerdays, keep Cat classic parts in mind.
GC 👍