Installing a six inch bearing on a rotoflex drum shaft. We use a enerpac hollow cylinder and a 1 1/4” 4140 threaded rod for pressing. I think the cylinder is 50 tons at 10,000 psi. Bearing fit is .003” undersize. We could heat it and slide it on but we then have to heat the entire bearing and housing and risk ruining the seals.
I did ruin the new seal anyway by bumping it on the shaft so I had to remove again after it was installed. Bummer. But you can see how I remove them to.
Removal is done again with 4140 rods but threaded at on end. Then we have a special ”gripper nut” that we can position anywhere on the bar which is attached to a 1 1/2” plate in the shape of a c that slides behind the bearing. Again we use an enerpac cyclinder for removal.