Spherical roller bearings have double-row rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways that are inclined at an angle relative to the bearing axis. This ingenious structure makes it have self-aligning performance, so it is not easy to be affected by the angle error or shaft bending of the shaft and the bearing housing, and is suitable for installation errors or shaft deflection that cause angle errors. In addition to bearing radial loads, the bearing can also bear axial loads acting in both directions

Spherical roller bearings have two types of inner holes:cylindrical and conical. The taper of the conical hole is 1:30 and 1:12. The tapered inner hole self-aligning ball bearing can be easily and quickly assembled on the optical shaft or the stepped machine shaft

Spherical roller bearing classification

stamped steel plate reinforced cage (suffix E, rarely in China). Stamped steel plate type 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 cage for vibration (suffix JPA). Brass cage for vibration (suffix EMA). The same structure, the code on the bearing may be different

The main purpose

Papermaking machinery, reduction gears, railway vehicle axles, rolling mill gearbox bearing housings, rolling mill rolls, crushers, vibrating screens, printing machinery, woodworking machinery, various industrial reducers, vertical self-aligning bearings with seats.

Installation method

Spherical roller bearings are equipped with drum-shaped rollers 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 shell deflect, it can automatically adjust the load and the axial load in two directions. Large radial load capacity, suitable for heavy loads and impact loads. The inner diameter of the inner ring is a bearing with a tapered hole, which can be directly installed. Or use an adapter sleeve or a dismounting cylinder to install on a cylindrical shaft. The cage uses steel stamping cage, polyamide forming cage and copper alloy car cage.

For self-aligning bearings, an intermediate mounting ring is used to prevent the outer ring from tilting and rotating when installing the bearing with shaft into the shaft hole of the housing. It should be remembered that some sizes of self-aligning ball bearings have balls that protrude beyond the sides of the bearing, so the intermediate 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 separable bearings, the inner ring and outer ring can be installed separately, which simplifies the installation process, especially when both inner and outer rings need interference fit. When installing a shaft with an inner ring in place into a housing containing an outer ring, care must be taken to see that the inner and outer rings are properly aligned to avoid scratching the bearing raceways and rolling elements. If cylindrical and needle roller bearings use inner rings without flange ribs or inner rings with flange flanges on one side, it is recommended to use mounting sleeves. The outer diameter of the sleeve should be equal to the diameter F of the inner ring raceway, and the machining tolerance standard should be d10. Drawn cup needle roller bearings are best mounted with mandrels.