Cylindrical Roller Bearings SKF NU2222 ECP

The SKF NU2222 ECP cylindrical roller bearing, designed as a non-locating bearing, can accommodate high radial loads and measures 110 × 200 × 53 mm.

The NU2222 ECP cylindrical roller bearing is an open, single-row radial roller bearing in the SKF Explorer series with an optimised internal design. With key dimensions of a 110 mm bore, 200 mm outside diameter and 53 mm width, this design can withstand very high radial loads. The rolling bearing has a standard radial clearance, as well as dimensional accuracy P0 (ABEC 1) and running accuracy P6 (ABEC 3). For use in gearboxes and machinery, the design offers smooth running characteristics within a temperature range of -30 to +120 degrees Celsius.

What is the NU2222 ECP cylindrical roller bearing suitable for in practice?

Design engineers and maintenance technicians primarily use this bearing arrangement where high radial forces are present and thermal length changes in the shaft need to be compensated for. Typical applications include mechanical drives and housing designs in general mechanical engineering. As this is an open bearing without a groove or lubrication bore in the outer ring, it can be flexibly integrated into housing designs that are sealed on site.

What is the function of the NU design with a polyamide cage?

The NU design is characterised by two fixed flanges on the outer ring, whilst the inner ring remains flangeless and can be removed from both sides. As a result, the unit acts as a pure idler bearing, which compensates for axial displacement without inducing stress within the bearing. The built-in polyamide cage promotes low-friction operation, but limits the operating temperature range to between –30 and +120 degrees Celsius.