Tapered roller bearing

Tapered roller bearing is a separate bearing. The inner and outer rings of the bearing have conical raceways. This type of bearing is divided into single row, double row and four row tapered roller bearings according to the number of rows of rollers installed. Single row tapered roller bearings can withstand radial load and single direction axial load. When the bearing bears radial load, an axial component will be generated, so another bearing that can bear the axial force in the opposite direction is needed to balance. The ability of single row tapered roller bearing to bear axial load depends on the contact angle, that is, the outer race raceway angle. The greater the angle, the greater the axial load capacity. Single row tapered roller bearings are the most used tapered roller bearings. A small size double row tapered roller bearing is used in the front wheel hub of a car. Four row tapered roller bearings are used in heavy machines such as large cold and hot rolling mills.