Spherical Roller Bearings SKF 22326 CCK/C3W33

The SKF 22326 CCK/C3W33 self-aligning roller bearing, with a 130 mm bore, reliably compensates for misalignment and accommodates heavy radial and axial loads.

The SKF 22326 CCK/C3W33 self-aligning roller bearing is a double-row, open roller bearing made from standard bearing steel (100Cr6). It is designed to accommodate very high radial forces as well as axial forces acting in both directions. Thanks to the hollow-spherical outer ring raceway, the roller set adjusts its angular position automatically during operation. As a result, this roller bearing automatically compensates for misalignment and elastic shaft deflection. A sheet steel cage guides the symmetrical barrel rollers precisely between the raceways.

In which operating conditions does the 22326 CCK/C3W33 self-aligning roller bearing prove its worth?

The self-aligning roller bearing is used in demanding mechanical designs subject to high radial loads and axial forces on both sides. It compensates for static and dynamic misalignments of the shaft relative to the bearing housing without causing impermissible edge stresses on the roller bodies. The wide operating temperature range of –30 to +200 degrees Celsius covers both thermally non-critical environments and applications with increased operating heat.

What is the function of the tapered bore and the C3 clearance?

The suffix CCK denotes the tapered bore with a standard taper ratio of 1:12. This design facilitates assembly and disassembly on tapered shaft seats or using suitable mounting and withdrawal sleeves. The slightly increased radial bearing clearance (C3) compensates for the reduction in radial clearance that occurs when the inner ring is press-fitted axially onto the tapered seat. Furthermore, the C3 clearance allows for operational heating and uneven thermal expansion. The W33 designation indicates a lubrication groove with holes in the outer ring, which allows for direct relubrication within the housing.