It looks like the kubota one is a bit different.
It looks like 18-1 on the diagram above is a lock ring from other information I have seen on the net, but this isn't on mine.
Is the bearing (16) normally sealed?
Anyway time for a pic. of mine.
[Linked Image]
As you can see, there is no seal between the grass and the bearing...
I am now thinking that there should be a rubber seal from the outer black ring with the inner part of the seal sealing on the collar that is off in the pic as it sits of the output shaft.
Maybe i'll try and remove the rest of the black bit (which i think might be the remains of a seal) out and see if there is a circlip under it holding the bearing in place, and hope i'll be able to buy a seal and bearing to replace them.
There is another extension (not pictured) that screws onto the output shaft that the head attaches to for the kubota.
Does that help anyones memory?

It is a great reliable machine....that starts first go....maybe thats why there isn't so many of them around...probably not enough money in selling them as they were too reliable!!

Thanks for the help.

Last edited by Chris E; 14/11/12 08:07 PM.