The ability of single row tapered roller bearings to withstand axial loads

The ability of tapered roller bearings to withstand axial loads depends on the contact angle, that is, the angle of the raceway of the outer ring. 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 machinery such as large cold and hot rolling mills.

Adjust the axial clearance For the installation axial clearance of the tapered roller bearing, it can be adjusted by adjusting the nut on the journal, adjusting the gasket and the thread in the bearing seat hole, or by preloading the spring. The size of the axial clearance is related to the arrangement of the bearings during installation, the distance between the bearings, the material of the shaft and the bearing seat, and can be determined according to the working conditions.

For tapered roller bearings with high load and high speed, when adjusting the clearance, the influence of temperature rise on the axial clearance must be considered, and the clearance reduction caused by temperature rise must be estimated, that is, the axial clearance Adjust it appropriately.

For low-speed and vibration-bearing bearings, clearance-free installation or preload installation should be applied. Its purpose is to make the rollers and raceways of tapered roller bearings have good contact, distribute the load evenly, and prevent the rollers and raceways from being damaged by vibration and impact. After adjustment, check the size of the axial clearance with a dial gauge.