Cylindrical Roller Bearings SKF NU2230 ECM/C3

The SKF NU2230 ECM/C3 cylindrical roller bearing, with a 150 mm bore, brass cage and C3 clearance, offers high radial load-carrying capacity when used as a non-locating bearing.

The NU2230 ECM/C3 cylindrical roller bearing is a single-row radial roller bearing from SKF with an optimised internal design for demanding industrial applications. With key dimensions of a 150 mm bore diameter, 270 mm outer diameter and 73 mm width, this design can accommodate high radial loads. Designed as an open bearing, it can be flexibly integrated into a centralised lubrication system and operates within a temperature range of -30 to +150 degrees.

In which applications is the NU2230 ECM/C3 cylindrical roller bearing used?

This cylindrical roller bearing is primarily used in bearing arrangements where high radial loads act on the shaft and axial length changes must be compensated for without restriction. Due to its NU design, the bearing functions purely as a non-locating bearing. The inner ring has no flanges and can be removed from either side. As a result, during temperature-induced longitudinal expansion, the shaft and inner ring slide with low friction relative to the roller set and outer ring, without causing axial stress in the bearing arrangement.

What advantages do the brass cage and C3 clearance offer in terms of design?

The solid brass cage guides the cylindrical rollers precisely and is particularly suitable for applications involving vibrations or varying speeds. The suffix ECM refers to this robust cage design in combination with the reinforced internal geometry. The increased radial clearance (C3) compensates for dimensional changes caused by heating during operation or by tight press fits. This ensures that the necessary internal operating clearance is maintained even under thermal influences.