K3780-3720 Taper roller bearing consists of four components: the cone, or inner ring; the cup, or outer ring; the tapered rollers, or rolling elements; and the cage, or roller retainer.

K3780-3720 Single-row tapered roller bearing is able to carry radial and axial load in one directions simtaneously because an axial component of produced when this type of bearings loaded radically, two bearings are used together facing one another, or two or more bearings are matched and used.

Special tapered roller bearings for various applications: wheels, differential, transmission, etc.