Cylindrical Roller Bearings SKF NU222 ECM/C3

The NU222 ECM/C3 cylindrical roller bearing from SKF Rolling Bearings, as a free bearing measuring 110 × 200 × 38 mm, accommodates high radial forces with increased C3 bearing clearance.

The NU222 ECM/C3 cylindrical roller bearing is designed to accommodate high radial forces in industrial shaft mountings. This SKF rolling bearing is a single-row bearing with an optimised internal design and solid cylindrical rollers. As the NU design functions as a non-locating bearing, the inner ring can be removed from both sides. This facilitates installation and maintenance work, whilst axial length changes in the shaft during operation can be compensated for directly within the bearing without causing stress.

In which industrial applications is the NU222 ECM/C3 cylindrical roller bearing used?

This rolling bearing is primarily used where heavy radial loads act on rotating shafts and axial displacements occur at the same time. Typical applications are found in industrial bearing arrangements subject to high radial forces and thermal length changes in the shaft. Thanks to its open design without seals, the bearing is integrated directly into lubricated housings. The temperature range of –30 to +150 degrees covers demanding thermal environmental conditions in continuous industrial operation.

What properties do the brass cage and C3 bearing clearance offer?

This variant is characterised by the combination of the robust brass cage and the slightly increased radial clearance (C3). Brass cages offer high resistance to dynamic shock loads and vibrations. The increased C3 bearing clearance helps to ensure that the bearing remains operational even in the event of thermal expansion of the shaft and inner ring or in the case of tight fits. Furthermore, the component offers improved running accuracy to tolerance class P6 or ABEC 3, whilst maintaining standard dimensional accuracy to tolerance class P0/PN or ABEC 1.