Characteristics of spherical roller bearings

Time:2021.01.18  Source:Roller Bearings Suppliers

 Characteristics of spherical roller bearings

Overview of spherical roller bearings

The spherical roller bearing is a kind of rolling bearing, which allows rotation and angular deviation with low friction. Generally, these bearings support a rotating shaft in a hole in the inner ring, which may be misaligned relative to the outer ring. Due to the spherical inner shape of the outer ring and spherical rollers, misalignment may occur. Although as the name suggests, the shape of a spherical roller bearing is not truly spherical.

Spherical roller bearings include an inner ring and two inner rings. The inner ring has two raceways inclined at an angle to the bearing axis. The outer ring has a common spherical raceway, spherical rollers, and cages. Some designs also include an internal guide ring or center ring.

Characteristics of spherical roller bearings

Spherical roller bearings are self-centering. It can accommodate the misalignment between the outer ring and the inner ring, without affecting the bearing function.

Minimum load

All ball bearings and roller bearings must carry a minimum load to ensure normal operation. This also applies to spherical roller bearings. Especially in high-speed operation, the inertial force of the roller and the cage and the friction of the lubricant are the determinants of the rolling conditions of the bearing, which may cause a damaged sliding movement between the roller and the raceway.

The ability of bearings mounted on the bushing to carry axial loads

If a spherical roller bearing with an adapter sleeve is installed on a smooth shaft without fixed support, the amount of axial load that can be supported is determined by the friction between the shaft and the sleeve. WSBC 23130 CA/W33 bearings online, pls click here.

WSBC 23130 CA/W33.jpg

Spherical roller bearing cage and its use

Mainly applicable cage

Stamped steel plate cage (suffix E), glass fiber reinforced polyamide 66 cages (suffix TVPB), machined brass solid cage (suffix M), stamped steel plate cage (suffix JPA)

The main purpose

Papermaking machinery, deceleration devices, railway vehicle axles, rolling mill gearbox housings, rolling mill rollers, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers.

Spherical roller bearing installation

Spherical roller bearings are equipped with drum roller bearings between the inner ring with two raceways and the outer ring with spherical raceways. The center of curvature of the raceway surface of the outer ring is consistent with the center of the bearing, so it has the same self-aligning function as the self-aligning ball bearing. When the shaft and casing deflect, the load and the axial load in two directions can be adjusted automatically. The radial load capacity is large, suitable for heavy load and impact load. The inner diameter of the inner ring is a tapered bore bearing, which can be installed directly. Or use an adapter sleeve and a dismounting cylinder to install on the cylindrical shaft. The cage uses a steel stamping cage, polyamide forming cage and copper alloy cage.WSBC 23130 CAK/W33 bearings online, pls click here.

WSBC 23130 CAK/W33.jpg

For self-aligning bearings, when installing a bearing with a shaft into the shaft hole of the case, the use of an intermediate mounting ring prevents the outer ring from tilting and rotating. It should be remembered that the balls of some sizes of self-aligning ball bearings protrude from the sides of the bearings, so the middle 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 the inner and outer rings need to be 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 see if the inner and outer rings are properly 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 on one side, it is recommended to use a mounting sleeve. The outer diameter of the sleeve should be equal to the diameter F of the inner ring raceway, and the tolerance standard for mechanical processing should be d10. Drawn cup needle roller bearings are best installed using mandrels.

Wuxi Spark Bearing Co., Ltd (Aka Spark Bearings) is the complete, one-stop Spherical  Roller Bearings supplier & manufacturer. All products are qualified and have passed the ISO 9001 qualification. Here are some popular types of Spherical  Roller Bearings, Send a quote and get the latest price of cheap ball bearings from Spark Bearings.

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