Cylindrical Roller Bearings SKF NJ218 ECP

The SKF NJ218 ECP cylindrical roller bearing, measuring 90x160x30 mm, offers high radial load capacity and axial guidance in one direction.

This single-row NJ218 ECP cylindrical roller bearing is primarily designed to accommodate high radial loads. Designed as an open support bearing, the inner ring has a fixed flange, allowing it to be removed from one side. The optimised internal design of the Explorer version, together with the lightweight polyamide cage, ensures smooth guidance of the rolling elements. With dimensions of a 90 mm bore, 160 mm outside diameter and 30 mm width, the design is suitable for demanding shaft mountings in mechanical engineering.

In which bearing arrangements is the NJ218 ECP cylindrical roller bearing used?

This design is primarily used in bearing arrangements that combine high radial loads with unilateral axial forces. Thanks to its axial displacement capacity, the NJ design compensates for operational length expansion of the shaft in one direction. As this open bearing is designed without an integrated seal, sealing is provided by the surrounding housing structure.

What advantages does the polyamide cage offer during installation?

The polyamide material reduces the cage’s weight, dampens vibrations and minimises friction on the roller elements. At the same time, the separable design with an inner ring that can be removed from one side facilitates installation and removal, as the inner and outer rings can be fitted separately. The bearing is designed for operating temperatures ranging from -30 to +120 degrees. With standard radial bearing clearance and a running accuracy of P6 or ABEC 3, the unit fits into specified bearing seats.