Bearing Buddy wheel protectors prevent wheel bearing failure on boat, snowmobile, ATV, horse, RV and utility trailers by keeping water and dirt out of hubs and bearings. Eliminates bearing packing. Stainless steel components. U.S.A. Diameter in. 2.32, Application Boat, utility, horse, trailer, Max. PSI 3, Material Stainless steel. Automatic pressure relief prevents over-filling and over-pressurization Grease fitting located in center of the piston Stainless steel components
The Bearing Buddy wheel bearing protectors eliminate the need to repack bearings with grease and do work just fine on an RV trailer. Weight and type of brakes would not make any difference in the Bearing Buddies ability to protect the bearings from needing to be repacked with grease.