Taper Roller Bearing Cup and Cone HM518445/HM518410 88.9 x 152.4 x 39.69 mm 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: 88.9mm Width: 39.69 mm Diameter Outside: 152.4mm Type: Set (Cup & Cone) Material: Chrome Steel Weight 3.02 kg