Originally Posted by
Andrew R Stewart
- My comment about water/pressure and bearing contamination is more for the reading audience. But I will say that using a high pressure washer is a commonly known way to wash out lube. Bearing seals are not designed to resist the pressures that a pressure sprayer can offer. If the operator is very careful as to where the spray is directed then the potential bearing damage is less. But any time a high powered tool is used it's up to the person to take due care.
I disagree. Seals on old cup and cone bottom bracket bearings aren't designed for high pressure spray. Cartridge bearing bottom brackets sealed many times better than the old cup and cone BB...even cheap ones. More expensive ones use bearings that are usually made for submersion pumps and can handle pressure sprayers without issue.