Spherical Roller Bearings SKF 23148 CCK/W33

The SKF 23148 CCK/W33 spherical roller bearing, measuring 240 × 400 × 128 mm and featuring a tapered bore, offers a robust solution for heavy-duty industrial applications.

The 23148 CCK/W33 self-aligning roller bearing is a double-row roller bearing designed for demanding industrial drives. It accommodates high radial loads as well as simultaneously acting axial forces in both directions. Thanks to its spherical outer ring raceway, the bearing automatically compensates for misalignment and shaft deflection during operation. This SKF product belongs to the Explorer series and is made from standard rolling-element bearing steel (100Cr6). The open design allows lubricants direct access to all functional surfaces of the roller set.

In which applications does the 23148 CCK/W33 self-aligning roller bearing excel?

Design engineers primarily select the 23148 CCK/W33 self-aligning roller bearing for heavy-duty machine mountings where misalignment or elastic shaft deflections occur. Typical applications include heavy-duty industrial gearboxes and mounting points subject to combined loads. The rolling elements distribute loads evenly across the raceway, which helps to reduce friction. The sheet steel cage guides the rollers precisely and maintains the correct spacing between them.

What is the function of the tapered bore and lubrication groove?

The suffix ‘K’ refers to the tapered internal bore with a ratio of 1:12. This geometry allows the bearing to be mounted either directly onto a tapered shaft journal or, using clamping or withdrawal sleeves, onto smooth shafts. This enables the radial bearing clearance to be adjusted during press-fitting. The designation W33 indicates an annular lubrication groove with lubrication holes in the outer ring. This facilitates relubrication whilst the bearing is installed, as fresh lubricant is directed precisely into the interior.