18690/18620 – Koyo Imperial Taper – 46.04×79.38×17.46mm

Taper roller bearings consist of an inner ring (cone), an outer ring (cup), a cage and rollers which are profiled to distribute the load evenly.  They have high radial and axial (thrust) load capacities at low to intermediate speeds.  Taper roller bearings are available in single-row, two-row and four-row designs. With single-row bearings, the thrust load capacity is about 60% of the radial capacity. Double-row bearings have a greater radial load capacity and can handle thrust loads in both directions.