Cylindrical Roller Bearings SKF NJ218 ECP/C3

The SKF NJ218 ECP/C3 cylindrical roller bearing, measuring 90x160x30 mm, offers high radial load capacity and axial guidance in one direction.

This single-row NJ218 ECP/C3 cylindrical roller bearing from SKF, when used as a support bearing, withstands very high radial forces and provides axial guidance in one direction. The combination of an optimised internal design and precision-machined rollers ensures even load distribution across the rolling element contact. As the inner ring is removable from one side, the bearing is easy to handle during installation and maintenance and can be fitted separately.

What is the NJ218 ECP/C3 cylindrical roller bearing suitable for in operation?

This design is primarily used in bearing arrangements where high radial forces and one-way axial guidance are required. Thanks to its support bearing function, the bearing compensates for axial length changes in the shaft in one direction, whilst the fixed end supports axial forces from the opposite direction. The open design without sealing washers allows for flexible lubrication with oil or grease directly via the surrounding structure.

What advantages do the polyamide cage and C3 bearing clearance offer in this design?

The lightweight polyamide cage reduces friction, minimises inertial forces during acceleration and ensures smooth running within a temperature range of -30 to +120 degrees Celsius. The increased radial bearing clearance (C3) helps ensure that the bearing operates without internal stress, even under operational heating or with tight fits. Combined with dimensional accuracy to standard tolerance P0/PN and improved running accuracy to P6, this design is suitable for demanding applications with increased requirements for concentricity.