Spherical Roller Bearings SKF 22226 E

The SKF 22226 E self-aligning roller bearing, measuring 130 × 230 × 64 mm, compensates for misalignment and is designed for high radial and axial loads.

The SKF 22226 E self-aligning roller bearing is a double-row roller bearing for demanding mechanical systems. With an inner diameter of 130 mm, an outer diameter of 230 mm and a width of 64 mm, this open bearing accommodates high radial and axial forces in both directions. The sheet steel cage guides the barrel-shaped rollers during operation. As an SKF Explorer variant, the component features an optimised internal contact geometry, which contributes to even load distribution across the raceways.

What operating conditions does the 22226 E self-aligning roller bearing compensate for?

The 22226 E self-aligning roller bearing compensates for misalignment between the inner ring and the outer ring caused by misalignment errors or elastic shaft deflection under load. The spherical hollow ball raceway in the outer ring allows the roller sets to swing freely without edge loading. With a permissible temperature range of –30 to +200 degrees, the bearing covers a wide range of thermal operating conditions. As this is an open bearing without integrated seals, sealing is provided by the surrounding housing structure.

What are the functions of the lubrication groove and the P5 precision?

The bearing features a circumferential lubrication groove with lubrication holes on the outer ring. This design enables targeted relubrication of the bearing, allowing lubricant to reach directly between the two rows of rollers. The dimensional accuracy corresponds to class PN, whilst the running accuracy, in accordance with class P5, specifies tighter concentricity tolerances. The higher running accuracy ensures smooth operation at higher speeds and reduces vibrations in the drivetrain.