Spherical Roller Bearings

Self-aligning roller bearings can adapt to the severe environment and working condition, are mainly designed to bear very heavy radial loads and heavy axial loads, have extremely high impact load resistance, and can realize full-capacity load through self-aligning functions thereof in the case that an installation axes are misaligned.

In outer rings of the cam roller bearings, two rows of rollers have a common spherical raceway. Thus, they can be automatically aligned in a wide range of swing angles and can accept axis alignment errors within a certain range.

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  • Spherical Roller Bearings
  • Spherical Roller Bearings

Spherical Roller Bearing Types

As a manufacturer of spherical roller bearings in China, VXO offers two types of spherical roller bearings, symmetrical and asymmetrical, according to the cross-sectional shape of the rollers. Asymmetric spherical roller bearings are an early product and are mainly used for machine maintenance service.

Spherical roller bearings are divided into cylindrical bore and tapered bore. Tapered bore taper is 1:12, suffix code is K spherical roller bearing, 1:30 suffix code is K30 spherical roller bearing. When this type of bearing is combined with a tapered shaft, the inner ring can be moved axially to adjust the radial clearance of the bearing.

The installation of Spherical Roller Bearing

Spherical roller bearings are equipped with drum-shaped roller bearings between the inner ring with two raceways and the outer ring with spherical raceways. The curvature center of the outer ring raceway surface is consistent with the bearing center, so it has the same centering function as the self-aligning ball bearing. When the shaft and housing are deflected, the load and the axial load in two directions can be adjusted automatically. Large radial load capacity is suitable for heavy load and shock load. Spherical roller bearings whose inner diameter is a tapered bore can be directly installed. Or an adapter sleeve or withdrawal sleeve can be used to install it on the cylindrical shaft. The cage uses a steel stamping cage, a polyamide forming cage and a copper alloy car cage.

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

For split roller bearings, the inner ring and the outer ring can be installed separately, which simplifies the installation process, especially when the inner and outer rings require interference fit. When installing the shaft with the inner ring in place into the bearing box that already contains the outer ring, care must be taken to check whether the inner and outer rings are correctly aligned to avoid scratching the bearing raceways and rolling parts. If cylindrical and needle roller bearings use inner rings without flanges or inner rings with flanges on one side, it is recommended to use mounting sleeves. The outer diameter of the sleeve should be equal to the inner ring raceway diameter F, and the tolerance standard for machining should be d10.

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