Tapered roller bearings utilize conical rollers and raceways, arranged so that the rollers and raceways meet at a common apex. The rollers are guided by contact between the large end of the roller and a rib on the inner ring. This provides high capacity for radial and single thrust loads. NTN Tapered Roller Bearing, Round Bore, 40 mm Bore Dia, 75 mm Outside Dia, 26 mm W, Open Closure, 103000 N, Case Carburized Steel Bearing, 5200 RPM Grease/6900 RPM Oil Maximum, -40 to 120 °C