JOJI single-row tapered roller bearings are designed to accommodate combined loads—simultaneously acting radial and axial loads. The extended raceways converge at the same point on the bearing axis, achieving true rolling motion and thus low frictional torque during operation. The axial load capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle (typically 10° to 30°) is related to the calculation factor e (as per the product table): the larger the e value, the larger the contact angle.