Axels and wheels
I believe lubricating the axels (torsion) and the wheel bearings are two separate operations.....The axels should have grease fittings like cars used to have.... There a external wheel bearing attachments called "bearing buddies" that allow the wheel bearings to be greased without removeing the wheels....
"Many go flyfishing all their lives without knowing it's not the fish they're after."
[Henry David Thoreau, modified]