Mf 50b king post / slew bearing question

[Seventysix50b]

Hi
I recently bought a 76 massey ferguson 50b and the other day the lower king post or slew bearing failed, I can't find anyone who lists them or has the dimensions so that I can order one from a bearing supplier. I don't really want to remove the carrier to measure the old one yet, as it will render the digger immobile. I am hoping someone might know the dimensions or a supplier.
Regards

 

[agrimax]

The best I can find is part no. 871333M1 which is 120x65x23. Just listed as MF 50B slew motor bearing. Can't be sure where it goes in the slew system but!
Other than contacting here https://picclick.co.uk/Massey-Ferguson-50B-Back-Actor-Lower-King-Post-223698599407.html
and see if they would measure the dimensions,it may tell if the above bearing is the right one. May need this bearing housing as well anyway.

 

[Mursal]

Relatively easy fix, no need to take the actor off, just wiggle out of the way, (with the hydraulics) but you probably know that. Good luck .....

 

[jf850]

The last bearing I got for mine , I got from an MF digger "specialist ". He relieved me of €252 for it , if memory serves me .
What does in that bearing is water sitting in it . Couple of shots of grease regularly keeps water out . But of course you grease it weekly .

 

[Seventysix50b]

Sorry for the delay in replying. Thanks for the input, I ended up removeing it as it wasn't a tricky job, the outer seems like 118mm and inner race hole 65mm and the thickness of the inner race 23mm (outer had disintegrated and nothing left to measure) so these dimensions are what 871333M1is basically. The outer housing is a little burred from the mincing up of the outer race so I'll tidy that up and I imagine that it will be the 120. So for anyone in the future this 871333M1 is for the lower king post and possibly the upper bearing. Does anyone know if a grease seal is associated with this bearing( it needs one)
Cheers
Grahame