Spherical Roller Bearings SKF 23218 CC/W33

SKF 23218 CC/W33 self-aligning roller bearing: An open industrial roller bearing measuring 90 x 160 x 52.4 mm, designed for high loads and to compensate for misalignment.

The SKF 23218 CC/W33 self-aligning roller bearing is designed to accommodate high radial forces as well as combined axial loads. Thanks to the hollow spherical outer ring raceway, this design adapts to misalignment or shaft deflection during operation. The open design, made from roller bearing steel (100Cr6) with a sheet steel cage, is suitable for a temperature range of -30 to +200 degrees.

What loads and misalignments does the bearing compensate for?

This design is suitable for demanding bearing locations where shaft deflection or misalignment between the housing and the shaft occurs. The double-row roller bearing automatically compensates for these angular misalignments during operation, thereby preventing localised edge stresses on the rolling elements. As this is an open design without sealing washers, its use requires an external housing seal to protect against dirt and moisture, as well as a suitable lubricant.

What are the functions of the W33 lubrication groove and P5 running accuracy?

The suffix W33 denotes a circumferential lubrication groove with lubrication holes in the outer ring. During maintenance, the lubricant flows through this lubrication channel directly between the two rows of rollers into the interior of the bearing. This design combines PN dimensional accuracy at the mounting dimensions with enhanced running accuracy to class P5. This promotes smooth rotational movement and reduces vibrations during continuous operation.