Taper Roller Bearing Cup and Cone LM603049/LM603011 45.24 x 77.79 x 19.84mm This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft Bore Size: 45.24mm Width: 19.84 mm Diameter Outside: 77.79 mm Type: Set (Cup & Cone) Material: Chrome Steel Weight 390gms