NTN tapered roller bearing

NTN tapered roller bearings refer to radial thrust rolling bearings whose rolling elements are tapered rollers. There are two kinds of small cone angle and large cone angle. The small taper angle mainly bears the combined radial and axial loads mainly based on the radial load. It is often used in pairs and installed in the opposite direction. The inner and outer races can be installed separately, and the radial and axial clearances can be adjusted during installation and use; The large cone angle mainly bears the combined axial and radial loads mainly based on the axial load. Generally, it is not used to bear the pure axial load alone, but can be used to bear the pure radial load when it is configured in pairs (the ends with the same name are installed opposite to each other).

definition
The ability of a single row tapered roller bearing to withstand axial loads depends on the contact angle, that is, the angle of the outer ring raceway. The larger the angle, the greater the axial load capacity. The most used tapered roller bearings are single row tapered roller bearings. In the front wheel hub of the car, a small-sized double-row tapered roller bearing is used. Four-row tapered roller bearings are used in heavy-duty machines such as large cold and hot rolling mills.

Structural features
The type code of the tapered roller bearing is 30000, and the tapered roller bearing is a separable bearing. In general, the outer ring and inner assembly of tapered roller bearings are 100% interchangeable, especially in the size range involved in GB/T307.1-94 "Rolling Bearings - Radial Bearing Tolerances".
The angle of the outer ring and the diameter of the outer raceway have been standardized as the outer dimensions. Changes during design and manufacture are not allowed. So that the outer ring and inner assembly of the tapered roller bearing can be interchanged worldwide.
Tapered roller bearings are mainly used to bear combined radial and axial loads mainly based on radial loads. Compared with angular contact ball bearings, the bearing capacity is large and the limit speed is low. Tapered roller bearings can withstand axial loads in one direction and can limit the axial displacement of the shaft or housing in one direction.