Taper Roller Bearing Cup and Cone LM12749/LM12710 21.99 x 45.24 x 15.49mm 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: 21.99 mm Width: 15.49 mm Diameter Outside: 45.24 mm Type: Set (Cup & Cone) Material: Chrome Steel Weight 120gms