SKF 31311, Single row tapered roller bearing, 55 mm ID, 120 mm cup OD, 31.5 mm WD

Tapered roller bearings have tapered inner and outer ring raceways and tapered rollers. They are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads. The projection lines of the raceways meet at a common point on the bearing axis to provide true rolling and low friction. Single row tapered roller bearings are separable, i.e. the inner ring with roller and cage assembly (cone) can be mountedseparately from the outer ring (cup).