Tapered roller bearings mainly bear radial and axial combined loads. The bearing capacity depends on the raceway angle of the outer ring. The greater the angle, the greater the bearing capacity. This type of bearing is a separate bearing, which is divided into single row, double row and four row tapered roller bearings according to the number of rows of rolling elements in the bearing. The clearance of single row tapered roller bearing shall be adjusted by the user during installation; The clearance of double row and four row tapered roller bearings has been given according to the user's requirements when the product leaves the factory, and does not need to be adjusted by the user.

Tapered roller bearings have conical inner ring and outer ring raceways, and tapered rollers are arranged between them. The projection lines of all conical surfaces meet at the same point of the bearing axis. This design makes tapered roller bearings particularly suitable for composite (radial and axial) loads. The axial load capacity of the bearing is mostly determined by the contact angle α Determined; α The greater the angle, the higher the axial load capacity. The angle is expressed by the calculation coefficient E; The larger the E value is, the greater the contact angle is, and the greater the applicability of the bearing to bear axial load is.

Tapered roller bearings are usually of separate type, that is, the tapered inner ring assembly composed of an inner ring with a roller and a cage assembly can be installed separately from the tapered outer ring (outer ring).