Bearing Buddy Trailer Wheel Bearing Protectors Hub Bore = 1.980 in.

Bearing Buddies replace the dust cap in the axle hub, which is filled with grease through the Bearing Buddy. When the wheels are submerged, pressure from the spring-loaded piston keeps the water out! Prevents wheel bearing failure Keeps water and dirt out of hubs and bearings Eliminates the need for bearing re-packing Stainless steel barrel and components provide maximum corrosion protection 100% inspected, quality construction Automatic pressure control feature prevents hub seal damage Easy installation - instructions included HOW TO SELECT THE RIGHT MODEL Pick a genuine Bearing Buddy to match your hub bore. To convert a model number to the hub bore in inches (or dust cap diameter), simply place a decimal point after the first digit in the model number. Model #1980, for example, fits a 1.980" bore hole diameter.