Spherical Roller Bearings SKF 22222 E

The SKF 22222 E self-aligning roller bearing (110x200x53 mm) compensates for misalignment and accommodates high radial and combined loads in mechanical engineering.

The SKF 22222 E self-aligning roller bearing is a robust rolling bearing designed for demanding industrial applications. With key dimensions of 110 mm bore diameter, 200 mm outer diameter and 53 mm width, this bearing accommodates high radial and axial forces. Thanks to its barrel-shaped rollers, the double-row bearing compensates for misalignment and shaft deflection during operation. Manufactured from tried-and-tested 100Cr6 rolling bearing steel, this open bearing offers high dimensional stability for operating temperatures ranging from -30 to +200 degrees.

What loads does the 22222 E self-aligning roller bearing accommodate?

This bearing accommodates heavy radial loads as well as simultaneously acting axial forces and compensates for misalignment between the shaft and housing. When load-bearing shafts deflect elastically under load, the barrel-shaped rollers tilt within the spherical outer ring without edge stresses. A robust sheet-steel cage guides the rows of rollers stably and maintains the correct spacing between the rolling elements. As an unsealed bearing, this version is used in housing designs with existing oil or grease lubrication.

What are the functions of the lubrication groove and P5 running accuracy?

The outer ring is fitted with a circumferential lubrication groove and lubrication holes. When the bearing is installed, fresh lubricant enters directly between the two rows of rolling elements via these openings. This design combines dimensional accuracy (PN) at the mounting surfaces with enhanced running accuracy to Class P5. This tighter running tolerance supports low-vibration concentricity of rotating shafts with normal radial bearing clearance. An external housing seal protects the open bearing location from the ingress of dirt.