Spherical Roller Bearings SKF 23028 CCK/W33

The SKF 23028 CCK/W33 spherical roller bearing accommodates high radial loads and reliably compensates for misalignment with a shaft diameter of 140 mm.

This double-row roller bearing is designed for demanding industrial applications involving heavy radial loads and shaft deflection. The hollow-spherical outer ring raceway allows the roller set to self-align, thereby compensating for misalignment between the shaft and housing. Manufactured from standard 100Cr6 rolling bearing steel and featuring increased running accuracy to tolerance class P5, it ensures low-vibration operation across a temperature range of -30 to +200 degrees.

What loads is the 23028 CCK/W33 self-aligning roller bearing designed for?

The design primarily absorbs high radial forces whilst simultaneously guiding the shaft in both axial directions. Thanks to the oscillating movement of the rollers on the spherical outer ring raceway, the load-carrying capacity is maintained even in the event of elastic shaft deflections. A sheet steel cage guides the barrel-shaped rollers evenly and maintains a precise spacing between them. As an open component, the bearing requires a clean housing environment and lubrication via the lubrication holes integrated into the outer ring.

What are the advantages of the tapered bore with a 1:12 taper?

The suffix ‘K’ refers to the tapered internal bore. This design facilitates mounting on tapered shaft seats or, with the aid of suitable mounting and withdrawal sleeves, on cylindrical shafts. You can precisely adjust the operating clearance via the axial sliding travel. For lubricant supply, the outer ring features a circumferential groove with bores in accordance with the W33 standard. This allows grease or lubricating oil to flow directly between the two rows of rollers.