Product structure features

In the design of tapered roller bearings, the inner and outer ring raceway surfaces and the roller cone apex intersect at a point on the central axis of the bearing. The radial load acting on the bearing will generate an axial component, so the two bearings need to be facing each other and used as a combined bearing or double-row bearing.

Basic introduction to the product

The inner and outer rings of the tapered roller bearing have tapered raceways, and the rollers are also tapered. If the cone is extended, its apex intersects at a point on the bearing axis. Therefore, the tapered roller bearing can achieve pure rolling on the raceway.

Tapered roller bearings are separable bearings, and the bearing internal components (consisting of rollers, cages and inner rings) and the outer ring can be separated. Convenient installation on the journal and bearing seat.

Tapered roller bearings are suitable for bearing single axial loads, radial loads and combined axial and radial loads. The ability of tapered roller bearings to withstand axial loads depends on the size of the contact angle, that is, the outer ring raceway angle. The larger the contact angle α, the greater the axial load capacity.

Generally, tapered roller bearings are not allowed to have angular errors, but after special design, the roller and raceway surfaces can allow angular errors of 2'~4'.

Tapered roller bearings are divided into single-row, double-row, and four-row types. The single-row tapered roller bearings are mainly introduced. Single-row tapered roller bearings can withstand axial loads in one direction and limit the axial displacement of the shaft relative to the bearing seat in one direction. Even under pure radial loads, tapered roller bearings will generate additional axial forces inside. In order to offset the axial forces, two single-row tapered roller bearings of the same structure are usually installed face to face or back to back in two supports.