18307 LLH Sealed Cartridge Bearing 18x30x7 Replacement Hub Bearing 5288411

1- Sealed Cartridge Hub Bearing 18307 LLHFit Hubs and Suspension Systems requiring 18307 LLH 18x30x7 bearings (Fits Some TREK Rapid Drive Hub Hub Systems) If the bearing you are replacing is not marked with a manufacturer number, measure it and compare to specifications listed below.Dual lip seals on both sides of the 18307 bearing Model:  18307 LLH Replacement Cartridge Hub BearingID x OD x W (mm):18x30x7Thickness: 7mmBearing O.D.: 30mmMaterial: SteelBearing I.D. (mm): 18mmCartridge bearing Manufacturer Number: 18307 LLHManufacturer Part Number: 5288411UPC: 601842875537