These fit the reels on my Cab Cadet riding mower as listed on the Revain website. This is the third set of bearings for my mower. The first set lasted 8 years, and the second (different brand) - 2 years. However, it appears that either the bearing seals have failed in the second set or there is poor lubrication/lubrication. So I increase the amount of lubrication all at once every two months (about every 25 hours of operation). I will update my review when I have more information to share.