Replacing gear bearings on Deckel FP2 headstock

I am replacing some bearings on my FP2 to reduce the noise levels. I thought I would document the process of installing the two 6010 bearings (50 x 80 x 16mm) that support the big gear behind the horizontal spindle.

Here is the setup:



Bottom left: new bearings sealed in plastic, the bearing "pusher" which is 79.5mm OD, 50.5mm ID, ID runs 55mm deep, overall length about 60mm.

Top right: Inner and outer spacer, rear nut (note that I have added four extra holes, at 60 degree spacings), two heavy bellville washers for preload, and retaining grub screws for outer spacer.

Here is another view of the bearing pusher:



face is machined flat to pull on the inside and outside races equally

Here I am pulling the first bearing into place:





You then insert the spacers, bellville washers, and the second bearing, then pull that into place. Finally add the nut and tighten it.

Here it is with the spindle in place:





Liftoff for the ride back to the mother ship:



I machined a new rear cap from plastic, with two M6 puller holes that are at the correct radius to push on the outer bearing shells.