This type of seal, not rapped by a outer sleeve or groove, is often found to travel as it stretches/expands with wear. One more reason that the marketing term "sealed" is not what many find is the real result. I see a lot of pedals and other bearing units with drifting/expanding seals often.


I disagree with the suggestion of too much grease being a wrong thing. Seals are about keeping stuff out of a bearing, not about keeping grease in. I feel one should grease a bearing so some grease gets squeezed out in initial use.


Again I think the failure here is the belief that the "seals" referenced are a positive and reliable barrier to stuff getting in. Andy