SKF Tapered Roller Bearings are designed to accommodate combined loads, e.g. acting simultaneously radial and axial loads. Track projection lines meet at a common point on the bearing axis to provide true rolling action and therefore low friction moments during operation. The axial load capacity of tapered roller bearings increases by increasing the contact angle to. The size of the contact angle, which is usually between 10° and 30°, is related to the calculation factor: the higher the value of e, the higher the contact angle.