CPC Subgroup
F16N 15/04 with water (bearings working in water F16C)
Full Title
Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions (F16N17/00 takes precedence; lubricating compositions, selection of particular substances as lubricants in general C10M) > with water (bearings working in water F16C)