Cylindrical Roller Bearings SKF NJ222 ECP

The SKF NJ222 ECP cylindrical roller bearing, with dimensions of 110 × 200 × 38 mm, offers a high radial load-carrying capacity as a separable support bearing.

The SKF NJ222 ECP cylindrical roller bearing is a single-row roller bearing with a 110 mm bore, a 200 mm outer diameter and a width of 38 mm. In the Explorer version, this rolling bearing features an optimised internal design that reduces friction and promotes a smooth flow of forces during operation. It is primarily designed to support high radial loads. Thanks to its standard radial clearance, the bearing is suitable for standard operating conditions without excessive thermal expansion between the inner and outer rings.

What functions does the NJ222 ECP cylindrical roller bearing fulfil as a support bearing?

This cylindrical roller bearing is designed for bearing arrangements subject to high radial forces where defined axial guidance is required. The NJ design acts as a support bearing: it guides the shaft in one axial direction whilst compensating for axial displacement within the bearing in the opposite direction. This allows the bearing arrangement to be axially fixed on one side without the need for additional thrust washers.

What are the distinctive features of the polyamide cage and the design of the NJ222 ECP?

The suffix ‘ECP’ denotes the combination of optimised internal geometry and a polyamide cage. The polyamide cage reduces the component weight, runs quietly and allows operation within a temperature range of -30 to +120 degrees Celsius. As this is an open bearing without a seal and without a lubrication groove on the outer ring, lubrication and sealing are provided by the surrounding machine housing.