Characteristics and application of tapered roller bearings

Tapered roller bearings are separated bearings, bearing inner and outer rings have tapered raceways, rollers for round table shape. Roller and raceway for line contact, can bear heavy radial and axial combined load, can also bear pure axial load. The larger the contact Angle, the higher the axial bearing capacity.

The design of tapered roller should make the contact line of the roller and the inner and outer raceway extend and cross at the same point on the bearing axis to achieve pure rolling. The newly designed tapered roller bearing adopts the reinforced structure, the diameter of the roller is enlarged, the length of the roller is lengthened, the number of the rollers is increased, and the roller with the crown is adopted, so that the bearing capacity and fatigue life of the bearing are significantly improved. The contact between the big end face and the big side of the roller is made of the spherical surface and the conical surface to improve the lubrication.

This kind of bearing can be divided into single row, double row and four row tapered roller bearing according to the number of roller rows installed. This kind of bearings also use the British series production, tapered roller bearings mostly use steel plate stamping cage, but when the bearing diameter is greater than 650mm, the pillar welding structure cage with pillar hole roller is used.

Main uses of tapered bearings:

Single train: automobile front wheel, rear wheel, machine tool spindle, shaft car, rolling mill, construction machinery, lifting machinery, printing machinery and various reduction devices.

Double column: machine tool spindle, rolling stock

Four columns: roll supports