Originally Posted by
phughes
OMG You just cannot stop. You have a serious problem with understanding a simple point. If a bearing is lubed, it will not pit. That is what I said. I also mentioned contamination, but you seem to not be able to see that.
And what about your own inability to understand a simple point? If lubricant is all that is needed to prevent cone pitting, why has Shimano spent so much time, effort, and money developing ever more elaborate sealing systems? I see lots and lots of hubs from various ages in Shimano’s line and can (almost) date them from just their seals alone. Pre-mountain bike, they are basically unsealed. Then there is the rubber seal in the dust cover. Then there is small rubber grommets. And then larger rubber grommets and labyrinth seals.
Interestingly, the need for replacement cones have decreases as the seals get better. Seems there is something to all that work on sealing the hubs.