My new lathe has double tapered timken roller bearings on the front of the spindle. It had set for a while so I figured the grease probably dried and hardened so I unscrewed the fitting and withdrew as much as I could with a little screwdriver then filled it up with light spindle oil before running it a low speed. Didn't hear anything alarming when I listened to the bearing through the handle of a screwdriver.
Got a tube of grease at the bearing supply that's 'compatible with most bases' and gave it a couple pumps but the grease started coming out the base of the zerk fitting. Turns out there's a slot cut through its threads: is that a 'relief valve' for the bearing seal?
Someone here - maybe Pete Keillor - spoke of cleaning out this bearing. How's that done? Then what? Wheel bearing grease?
My motive is to find out how fast I can run turning wood. A couple quick home-improvement projects would give this baby's popularity a much-needed boost around here.
Dick Hamm Nashua NH