Tapered roller bearings are separated type bearings, bearing inner and outer rings have tapered raceway, roller is a round table shape. Roller and Raceway are line contact, can withstand the heavier radial and axial joint load, also can withstand the pure axial load. The larger the contact angle, the higher the axial bearing capacity.
The tapered roller should be designed so that the contact line between the rollers and the inner and outer raceway is extended to the same point on the bearing axis to achieve pure rolling.
The newly designed tapered roller bearing adopts the reinforced structure, the roller diameter is enlarged, the length of rollers is lengthened, the number of rollers is increased, the bearing capacity and fatigue life of the bearing are improved remarkably. The surface of the roller and the big block are in contact with the cone, and the lubrication is improved.
The type of bearing according to the number of rollers can be divided into single row, double row and four row tapered roller bearings, and other types of structure. This kind of bearing also uses the Imperial series product.