I know no one has replied to this thread in a while, but I reread this and took the intiative to regrease the bearings on my trailer. It only took 1 1/2 hours to complete both wheels which included a trip to the auto parts store for new seals and DD for a large coffee! Messy, yes, but easy. The wheels spin noticeably more freely with the new grease than before. Last time I did the bearings was never so it neede to be done. Thanks for the pics.