Spherical Roller Bearings SKF 23030 CC/C3W33

The SKF 23030 CC/C3W33 spherical roller bearing features a 150 mm bore, C3 radial clearance and a circumferential lubrication groove for heavy-duty industrial applications.

The 23030 CC/C3W33 self-aligning roller bearing is an SKF rolling bearing made from standard bearing steel (100Cr6) with main dimensions of 150 x 225 x 56 mm. The design accommodates high radial loads as well as axial forces on both sides and automatically compensates for misalignment or shaft deflection during operation. Designed as an open bearing, the construction requires external sealing. A sturdy sheet steel cage guides the symmetrical rollers within a temperature range of -30 to +200 degrees.

In which applications does the 23030 CC/C3W33 self-aligning roller bearing prove its worth?

Typical applications include heavy-duty machine mountings subject to high radial loads and shafts with low bending stiffness. Where housing deformation or misalignment occurs, the spherical outer ring raceway compensates for misalignment without causing excessive edge stresses. Thanks to its P5 tolerance class for running accuracy, the bearing is suitable for designs with high requirements for concentricity. The standardised main dimensions enable a precise fit in corresponding standard housings.

What is the function of the C3 bearing clearance and the designation W33?

The suffix C3 indicates a slightly increased radial clearance. This additional radial clearance compensates for thermal expansion caused by heating during operation or for tight fits on the 150 mm shaft, thereby preventing stress concentrations. The designation W33 indicates a lubrication groove with lubrication holes in the outer ring. This allows lubricant to reach the rolling elements directly and evenly, which facilitates relubrication in open bearings.