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Spherical Roller Bearing

The spherical roller bearing is a bearing in which the drum-shaped roller is assembled between an inner ring having two raceways and an outer ring having a spherical race.


Spherical roller bearings have two rows of rollers that are primarily subjected to radial loads and can also withstand axial loads in either direction.

High radial load capacity, especially suitable for heavy or vibration loads, but not for pure axial loads.

The outer ring raceway of this type of bearing is spherical, so its self-aligning performance is good and it can compensate for the coaxiality error.

There are two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways inclined at an angle to the bearing axis, which has good aligning performance.

When the shaft is bent or installed with different cores, the bearing can still be used normally. The centering property varies with the bearing size series. Generally, the allowable centering angle is 1~2.5°.


This type of bearing has a large load capacity, and it allows for lower operating speeds.

According to the roller sectional shape, the self aligning spherical roller bearings is divided into two different structures: symmetric spherical roller and asymmetric spherical roller.

According to the inner ring with or without the ribs and the cage used, it can be divided into two types: C type and CA type. The C type bearing features the inner ring without rim and adopt stamped steel plate holder. The CA type features a rib on both sides of the inner ring and a solid body cage.


In order to improve the lubrication of the bearing, and user can provide the bearing with an annular oil groove and three oil holes in the outer ring, which is represented by the bearing rear code /W33.

In order to facilitate the loading and the unloading and replacement of bearings, the tapered roller bearing with inner bore is also available. The taper is 1:12, and the rear code is K. The taper is 1:30, and the rear code is K30.

The tapered bearing of the inner hole can be directly mounted on the tapered journal by a lock nut, or the bearing can be mounted on the cylindrical journal by means of an adapter sleeve or withdrawal sleeve.


Mainly available cages:

Stamped steel plate reinforced cage (suffix E)

Stamped steel plate cage (suffix CC)

Glass fiber reinforced polyamide 66 cage (suffix TVPB)

Machined brass two-piece cage (suffix MB)

Machined brass integral cage (suffix CA)

Stamped steel plate cage for vibration occasions (suffix JPA)

Brass cage for vibration applications (suffix EMA)



The spherical roller bearings are mainly used in paper machine, speed reducer, railway vehicle axle, rolling mill gearbox housing, rolling mill roller, crusher, vibrating screen, printing machines, woodworking machinery and so on.If you are interested and wanted to know skf spherical roller bearing price? Contact JNSN Bearing, a professional spherical bearing manufacturer & supplier with over 20 years of experiences.

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