Lower Rotor support bearing on an Sicma / First Choice Series RT10, RT10GE, RT12, RT14GE, RT19GE roto-cultivator, code 2106309. This bearing measures 100mm OD X 45mm ID X 25mm thick. It is used on the drive side of the rotor. We also sell the seal used with this bearing in our online store, the seal code is 6205090 (50x90x10) We sell many replacement parts for the most manufacturers of tillers, finish mowers, spreaders, 3-point hitch hay tedders and sickle bar mowers. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. Part Number: 2106309 We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.