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How to install spherical roller bearings

release time:

2022-10-25

Spherical roller bearings are equipped with drum-shaped rollers between an inner ring with two raceways and an outer ring with a spherical raceway. The center of curvature of the outer ring raceway surface is consistent with the center of the bearing, so it has the same alignment function as a self-aligning ball bearing. When the shaft or shell deflects, the load and axial load in two directions can be automatically adjusted. It has large radial load capacity and is suitable for situations with heavy loads and impact loads. Bearings with a tapered bore in the inner ring can be installed directly. Or use an adapter sleeve or disassembly barrel to install it on the cylindrical shaft. The cage uses steel plate stamping cage, polyamide forming cage and copper alloy machined cage.

For self-aligning bearings, when installing the bearing with a shaft into the shaft hole of the box, the use of an intermediate mounting ring can prevent the outer ring from tilting and rotating. It should be remembered that some sizes of self-aligning ball bearings have the balls protruding from the sides of the bearing, so the center mounting ring should be recessed to prevent damage to the balls. A large number of bearings are generally installed using mechanical or hydraulic press-in methods.

For separable bearings, the inner ring and outer ring can be installed separately, which simplifies the installation process, especially when both the inner and outer rings require an interference fit. When installing the shaft with the inner ring in place into the bearing box containing the outer ring, attention must be paid to check whether the inner and outer rings are correctly aligned to avoid scratching the bearing raceway and rolling parts. If cylindrical and needle roller bearings use an inner ring without flange ribs or an inner ring with a flange edge on one side, it is recommended to use a mounting sleeve. The outer diameter of the sleeve should be equal to the inner ring raceway diameter F, and the machining tolerance standard should be d10. Drawn cup needle roller bearings are best mounted using a mandrel.

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