Spherical Roller Bearings SKF 23068 CCK/W33

The SKF 23068 CCK/W33 spherical roller bearing, with a 340 mm bore and tapered seat, offers high load-carrying capacity for heavy-duty shaft mountings.

The 23068 CCK/W33 self-aligning roller bearing is an open rolling bearing designed for industrial applications involving high radial forces and simultaneous axial loads. Manufactured from standard roller bearing steel (100Cr6) in the SKF Explorer design, the double-row barrel roller construction automatically compensates for misalignment and shaft deflection during operation. A sheet steel cage guides the roller sets between the raceways, whilst the permissible temperature range of -30 to +200 degrees enables versatile use in a wide range of mechanical engineering applications.

In which installation situations does the 23068 CCK/W33 self-aligning roller bearing prove its worth?

Designs featuring large shaft diameters and combined radial and axial forces represent typical applications for this size. With key dimensions of 340 mm bore diameter, 520 mm outer diameter and 133 mm width, the design can withstand high loads. As the spherical outer ring raceway compensates for angular misalignment between the inner and outer rings, the system continues to operate even in the event of dynamic shaft deflection or slight misalignment of the housing bores.

What is the function of the tapered bore and the W33 designation?

The version with the suffix ‘K’ features a tapered bore with a taper ratio of 1:12. This design allows for mounting directly onto a tapered shaft journal or, using a clamping or withdrawal sleeve, onto cylindrical shafts. Fitters can precisely adjust the remaining radial operating clearance via the axial sliding travel. The W33 designation indicates a lubrication groove with lubrication holes in the outer ring. This facilitates targeted relubrication with grease or oil directly into the raceway zone of the roller sets.