Cylindrical Roller Bearings SKF NU222 ECP

The SKF NU222 ECP single-row cylindrical roller bearing, measuring 110x200x38 mm, offers a heavy-duty, free-running bearing with a removable inner ring for demanding industrial applications.

As a single-row cylindrical roller bearing, the SKF NU222 ECP can withstand very high radial loads. In the Explorer version, the bearing features an optimised internal design that reduces friction and improves contact between the rollers and the raceway. With a bore of 110 mm, an outer diameter of 200 mm and a width of 38 mm, this roller bearing is suitable for heavy-duty machine shafts. The open design without seals facilitates use in oil- or grease-lubricated systems.

When is the NU222 ECP cylindrical roller bearing the right choice for your design?

This roller bearing is primarily used where purely radial loads are present and thermally induced changes in shaft length need to be compensated for. As a free-end bearing of the NU design, the outer ring has two fixed guide flanges, whilst the flangeless inner ring remains free to slide on both sides. This enables the bearing to compensate for axial displacement without inducing stress within the bearing. Typical applications are found in general mechanical engineering in bearing arrangements subject to high radial forces and temperature-induced shaft expansion.

What are the advantages of combining the NU design with a polyamide cage?

The polyamide cage guides the cylindrical rollers precisely, operates quietly and reduces the weight of the cage assembly. The component can be used in a temperature range from -30 to +120 degrees. As the inner ring is fully removable, you can fit the outer and inner rings separately. The dimensional accuracy corresponds to tolerance class Normal (P0/ABEC 1), whilst the increased running accuracy of class P6 (ABEC 3) contributes to high concentricity.