45284 bearing cone Fits TimkenOne New Aftermarket Replacement 45284 Tapered Roller Bearing Cone for Timken Applications This single tapered roller bearing cone (inner ring assembly) is a direct replacement for Timken part number 45284. It serves as the inner race of a tapered roller bearing assembly, designed to handle both radial and axial loads in wheel hubs, axles, gearboxes, and heavy duty construction and industrial equipment. Typically mounted in opposing pairs on a shaft,