30209 Tapered Roller Bearings

Tapered roller bearings are generally used to bear compound loads dominated by radial loads. Their cups are separable and easy to assemble. In the process of installation and use, the radial clearance and axial clearance can be adjusted, and pre tightening installation can be carried out.
Tapered roller bearings are uniquely designed to manage thrust and radial loads on rotating shafts and bearing pedestals.
Tapered roller bearing is designed to bear thrust and radial load, and is composed of four parts: cone or inner ring; Cup or outer ring; Tapered roller or rolling element; And cage or roller cage.
Tapered roller bearings mainly bear combined radial and axial loads, mainly radial loads. The axial bearing capacity depends on the contact angle of the outer race. The larger the contact angle, the larger the capacity.
The included angle between the outer raceway bus of tapered roller bearing and the straight line. This bearing can bear heavy load and other tapered roller bearings. It mainly bears the combined load based on unidirectional axial load, not just radial load.
Tapered roller bearings have tapered inner and outer raceways, and tapered rollers are in the middle of the two raceways. This kind of bearing is usually separable, that is, the cage, inner ring and outer ring can be installed separately. They can bear huge radial load and certain axial load. They are designed in different sizes and styles to meet various functions.

       

1. High speed and high precision

2. Long service life

3. Lowest noise and good performance

Tapered roller bearings have conical inner ring and outer ring raceways, and tapered rollers are arranged between them. The projection lines of all conical surfaces converge at the same point of the bearing axis. This design makes tapered roller bearings particularly suitable for composite (radial and axial) loads. The axial load capacity of bearings is mostly determined by the contact angle α Determined; α The larger the angle, the higher the axial load capacity. The angle is expressed by the calculation coefficient E; The larger the E value is, the greater the contact angle is, and the greater the applicability of the bearing to bear axial load is.
Tapered roller bearings are usually separable, that is, the tapered inner ring assembly composed of the inner ring with roller and cage assembly can be installed separately from the tapered outer ring (outer ring).

1. High load carrying capacity

The large number of rollers, which have an optimum conformity with the washer raceways, enables the bearings to accommodate heavy axial and simultaneously acting radial loads.

2. Accommodate misalignment

Tapered roller bearings are self-aligning and can accommodate misalignment .

3. Separable design

Tapered roller bearings are separable, making it possible to mount and dismount the housing washer separately from the shaft washer and roller and cage assembly. In addition this facilitates maintenance inspections.

4. High speed capability

The cage designs and the optimum conformity of the rollers with the washer raceways make the bearings suitable for relatively high speeds.

5. Long service life

The tapered roller profile reduces edge stresses at the roller/raceway contact.

6. Low friction

The optimized roller end / flange contact keeps frictional heat at low level, even at high speeds.