Question as above. I'm wondering because I seem to have pretty regular problems with tires rotating hard to the point of having to redo the bearings. This is some point after I redo the bearings and have the wheel spin satisfactorily afterwards (cones not too tight or loose). When I redo the bearings, I find the most/all of the grease has worked its way into the middle of the hub and onto the axle, and there is very little of it in the bearing races.
So I'm wondering the question as in the title. I know the grease is on the older side, as well, so could it possibly just be too dry and is not viscous enough for the job at hand?