Cylindrical Roller Bearings SKF NU2311 ECP

The SKF NU2311 ECP cylindrical roller bearing, a single-row idler bearing measuring 55x120x43 mm, can withstand high radial loads.

The NU2311 ECP cylindrical roller bearing, a single-row rolling bearing from the NU23 series, belongs to the SKF Explorer performance class. It features an optimised internal design and is suitable for demanding industrial applications involving purely radial loads. Thanks to its open design without seals, this bearing can be integrated directly into existing lubrication systems, for example where there is an external oil or grease supply within the housing.

What functions does the NU2311 ECP cylindrical roller bearing perform as a non-locating bearing?

This cylindrical roller bearing primarily absorbs high radial forces and compensates for axial length changes in the shaft directly within the bearing. As the inner ring is flangeless on both sides, the rollers move freely relative to the raceway. This design functions purely as a non-locating bearing and prevents unwanted axial forces on adjacent components, thereby allowing thermal linear expansion of rotating shafts to be compensated for without inducing stress.

What are the advantages of the polyamide cage in the NU2311 ECP design?

The integrated polyamide cage guides the cylindrical rolling elements precisely and is characterised by its low weight. This material property reduces inertia during dynamic speed changes and promotes smooth running during operation. Furthermore, the inner ring, which can be removed from both sides, allows the two bearing rings to be fitted separately in the housing and on the shaft. The permissible temperature range of –30 to +120 degrees and the standard radial clearance set at the factory must be taken into account.