Single-row tapered roller bearings

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  Inch series Single-row tapered roller bearings
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  Metric series Single-row tapered roller bearings

(1) Single row tapered roller bearing
Single row tapered roller bearings are used to carry radial load mainly and axial load. The large cone angle tapered roller bearings (22 ° ~ 31 °) carry combined axial and radial loads mainly subject to axial load, and are generally used for pure axial load.
Single row tapered roller bearings can limit unidirectional axial displacement of the axes (or shells), therefore it used as unidirectional axial positioning bearings. They are separable bearings, and so inner and outer rings can be installed separately and outer rings are interchangeable. It is convenient to install and disassemble. During installing and using, radial and axial clearance can be adjusted arbitrarily, and the bearing rigidity can be increased by preloaded installing. The clearance of tapered roller bearing directly affects the bearing performance. If the clearance is too small, the temperature rise will be higher; if the clearance is too large, the vibration will increase and it will be difficult to guarantee the rotating accuracy. Therefore, in the process of installation and use, we should pay special attention to the reasonable adjustment of bearing clearance.
In order to prevent bearings from being damaged by stress concentration in the contact between roller and raceway, the shaft incline relative to the shell hole is not allowed during installation. Only when the roller and raceway generatrix are in contact with correction line, a micro inclination (≤ 2') is allowed. Because additional forces are produced under radial load, two sets of single row tapered roller bearings are generally installed in two supports of the shaft, which are installed face to face or back-to-back.
Single row tapered roller bearings are mostly used for automobile rear axle hub, large machine tool spindle, high power reducer, contact roller of conveying appliance, etc.