Double row double row tapered roller bearings (inch series) has tapered inner and outer ring raceways between which tapered rollers are arranged. The projection lines of all the tapered surfaces meet at a common point on the bearing axis. Their design makes tapered roller bearings particularly suitable for the accommodation of combined (radial and axial) loads. The axial load carrying capacity of the bearings is largely determined by the contact angle; the large contact angle. the higher the axial load carrying capacity.

Double row double row tapered roller bearings (inch series) is generally separable, i.e. the cone, consisting of the inner ring with roller and cage assembly, can be mounted separately from the (out ring).Double row tapered roller bearing outer ring (or inner ring) is a whole. Two inner ring (or outer ring) small end face similar to the middle of the circle, the clearance is to rely on the thickness of the cage to adjust, but also the thickness of the cage to adjust the double row tapered roller bearings pre-interference.