To achieve gains in casting distance when Replacing your old factory bearings . Increased 15%-20% long when pitching , approved by our customer Thomas, Ray in States . Obvious distance gains From Srune Bearings can be improved on side plate and Spool bearings repaced with their Lew's Reels . Ceramic Si3N4 smooth balls make rolling with less friction , that not being stuck when pitching .As well as at a faster speed.
Dry lube or cleaning them with lighter fluid? acetone? general degreaser? Lucas , Lew's Light oil ?
That is about how to have a good maintence ,fix, get it oiled for reel service to be quieter ,smoother.