Bearing Buddy Wheel Bearing Protectors provide protection against damage from water and dirt entering the wheel bearings and make lubricating bearings a snap. Wheel Bearing Protector model number 1980 features chrome plated steel construction. The 1980 chrome plated bearing protector is compatible with a 1.980" (50.29 mm) hub bore. Use with hubs with Outer Bearing Cone: L-44643, L-44649, L-44640. Use with hubs with Outer Bearing Cup (race): L44610. The Wheel Bearing Protector weighs 1 lb.