Cylindrical Roller Bearings SKF NU213 ECP/C3

The SKF NU213 ECP/C3 cylindrical roller bearing, with dimensions of 65x120x23 mm and a C3 clearance, provides a robust support for high radial forces.

The NU213 ECP/C3 cylindrical roller bearing is a single-row cylindrical roller bearing from SKF with an optimised internal design. With key dimensions of a 65 mm bore, 120 mm outside diameter and 23 mm width, the bearing is primarily designed to accommodate high radial loads. The open roller bearing design features an outer ring without a lubrication groove and a polyamide cage to guide the rollers. The bearing is designed for operation within a temperature range of -30 to +120 degrees.

What is the NU213 ECP/C3 cylindrical roller bearing suitable for in operation?

This model typically functions as a non-locating bearing to accommodate purely radial forces. The NU design is characterised by the fact that the inner ring is flangeless and removable from both sides. As a result, the bearing compensates for axial length changes of the shaft relative to the housing without constraint within the rolling element raceway. This supports designs where operational thermal expansion occurs or where the separate assembly of the inner and outer rings simplifies work processes.

What are the advantages of the C3 bearing clearance and the NU design?

The designation C3 indicates a slightly increased radial clearance compared with the standard version. This increased clearance compensates for reduced residual clearance when tight fits or temperature differences between the inner and outer rings come into play. In combination with dimensional accuracy to P0 or ABEC 1 and running accuracy to P6 or ABEC 3, the design supports smooth rolling motion whilst allowing for flexible handling of the separable bearing.