Product review (5 stars): Bushings need better lubrication
These parts along with the original, have bushings not bearings - very easy to disassemble, clean, and re-lubricate. I would only replace if the wheel is damaged. If you use the new part, make sure it is properly lubricated, not just a very light coat of oil, that won't last long on rotating machinery. I feel that is why some have complained that the new part did not last long.