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Tapered roller bearings are usually separate typeTapered roller bearing mainly bears radial and axial combined load. The bearing capacity depends on the raceway angle of the outer ring, and the larger the angle is, the greater the bearing capacity is. This kind of bearing belongs to separate type 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 needs to be adjusted by the user during installation; the clearance of double row and four row tapered roller bearing has been given according to the user's requirements when the product is delivered from the factory, and does not need to be adjusted by the user. Tapered roller bearings have tapered 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 the tapered roller bearing particularly suitable for composite (radial and axial) loads. Most of the axial load capacity of the bearing is determined by the contact angle α; the larger the angle α is, the higher the axial load capacity is. The angle is expressed by calculation coefficient e. the larger the value of E is, the larger the contact angle is, the greater the applicability of bearing to axial load is. Tapered roller bearings are usually of separate type, that is, the tapered inner ring assembly consisting of the inner ring with roller and cage assembly can be installed separately from the tapered outer ring (outer ring). |