Spherical Roller Bearings SKF 23038 CCK/W33

The SKF 23038 CCK/W33 spherical roller bearing, measuring 190 × 290 × 75 mm and featuring a tapered bore, provides a robust bearing solution for heavy-duty shaft assemblies.

The 23038 CCK/W33 self-aligning roller bearing is an open roller bearing made from classic standard bearing steel 100Cr6 for demanding industrial applications. It withstands high radial forces and automatically compensates for misalignment or shaft deflection during operation. Manufactured to the SKF Explorer performance class, this double-row roller bearing combines standard dimensional accuracy (PN) with increased running accuracy to tolerance class P5.

Under what loads does the 23038 CCK/W33 self-aligning roller bearing prove its worth?

This self-aligning roller bearing is primarily used in heavier industrial applications subject to high radial and combined forces. The design is suitable for bearing locations where elastic shaft deflection occurs under load or where misalignment between the bearing housings needs to be compensated for. The sheet steel cage reliably guides the barrel-shaped rollers even during dynamic speed changes. Thanks to its temperature range of –30 to +200 degrees, the design remains dimensionally stable and operational under thermal stress.

What is the function of the tapered bore and W33 lubrication groove?

The suffix ‘K’ denotes the tapered bore with a taper ratio of 1:12. This design allows for direct mounting on tapered shaft seats or, using clamping and withdrawal sleeves, on cylindrical shafts. Fitters adjust the standard radial bearing clearance to suit the application via the axial slide-on travel. The W33 designation indicates a lubrication groove with lubrication holes in the outer ring, allowing fresh lubricant to reach directly between the rows of rollers.