The lead screw is 3/4" diameter where it enters the gearbox, but the gearbox bore is 7/8" id. This is between the inner 7203 angular contact bearing and the outer thrust bearing. There is an oil feed hole that would drip into the 1/16" gap between the gearbox casting and the lead screw. It seems like the there should be a bushing supporting this end of the lead screw, but the parts diagrams don't show one. Neither is a bushing mentioned in the 2 rebuild guides I have.
Is there supposed to be a large clearance around the lead screw?
Or, is my lead screw too small for the gearbox casting?
The first picture shows the gap. The second shows a bushing I could install.
Thanks for your help.
Is there supposed to be a large clearance around the lead screw?
Or, is my lead screw too small for the gearbox casting?
The first picture shows the gap. The second shows a bushing I could install.
Thanks for your help.