Cylindrical Roller Bearings SKF NU2309 ECP

The SKF NU2309 ECP cylindrical roller bearing, a single-row idler bearing measuring 45 × 100 × 36 mm, withstands high radial loads.

The NU2309 ECP cylindrical roller bearing is designed to support shafts under predominantly radial loads. With a bore of 45 mm, an outer diameter of 100 mm and a width of 36 mm, the bearing is designed for high radial loads. The manufacturer SKF supplies this version in the Explorer class with an optimised internal design. As an open roller bearing without sealing rings, the bearing can be integrated directly into lubricated housing assemblies.

How does the NU2309 ECP cylindrical roller bearing compensate for axial displacement?

This single-row roller bearing functions as a conventional non-locating bearing. In appropriate bearing arrangements, the NU design compensates for thermally induced changes in shaft length within the bearing itself without any forced alignment. The inner ring has no flanges and can be removed from either side. This ensures that no axial stresses are generated in the bearing seat. At the same time, the cylindrical rollers provide a high radial load-carrying capacity within a compact installation space.

What are the distinctive features of the polyamide cage in the ECP design?

The suffix ECP denotes a polyamide cage that guides the rollers and keeps them spaced apart. This cage variant is characterised by its low weight and damping properties. The permissible temperature range is between –30 and +120 degrees Celsius. Thanks to the standard radial bearing clearance and a running accuracy of P6 or ABEC 3 with standard dimensional accuracy P0, the shaft runs smoothly during operation.