So this mill was from the 1970's-80s and the manual calls for Shell X-100 S.A.E. 10 W which I don't think is made anymore. The other bit is I'm not sure the old oil was ever optimal for this transmission - it had 5 worn out brass forks (for changing gears) that came with it. Running at high speed the spindle runs at 4200 RPM - and the brass fork is holding a coupler running at spindle speed.
The other parts lubricated are large gears - roller bearings.
Any ideas of what modern oil to use in this machine?
The other parts lubricated are large gears - roller bearings.
Any ideas of what modern oil to use in this machine?