Uriah Products UW700070 Bearing Protector Set (1.98" Dia. Spindles) Uriah Products Bearing Protector Set, 1.98", with rubber covers. These are drive-in replacement 1.986" OD Bearing Protecting hub caps for trailer hubs. They will fit any hub that requires this size cap. These protectors are designed with a grease fitting used to lubricate the spindle bearings without removing the caps. These are perfect for boat trailers that are occasionally submerged in water. These caps are necessary to protect the spindle bearings from seizing due to contamination entering the bearing area which will gall the bearing surface preventing the tire from rotating (Quantity 2). Features Universal Fit - Will Work With All Applications Includes 2 Grease Caps and Vinyl Covers Press Fit Design Use for Marine Applications Includes Zero Fittings for Easy Lubrication USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.