ABN Universal Wheel Bearing Packer &ndash; Automotive, Trailer, and Motorcycle Steering and Wheel Hub Bearing Repacker Practical: Use the ABN Universal Wheel Bearing Packer  Automotive, Trailer, and Motorcycle Steering and Wheel Hub Bearing Repacker to thoroughly and evenly inject new grease into bearings while removing old grease in a single step Versatile: For all bearings including automobile, trailer, and even motorcycle steering bearings; Use by hand operation or powered lube equipment; As long as the bearings are not sealed, it will work for any application Easy to Use: Place the bearing between the plastic cones, tighten, and apply grease through the fitting on the end of the threaded shaft Mess-Free: Allows packing of bearings and leaves no air pockets; Saves stains on clothes Specifications: Cone diameter is approximately 4.5 inches (11.4cm); Hard plastic cones and metal shaft