Cylindrical Roller Bearings SKF NJ219 ECP

The SKF nj219-ecp open cylindrical roller bearing with a polyamide cage, with an outer diameter of 170 mm, is suitable for high radial loads in mechanical engineering.

The SKF nj219-ecp cylindrical roller bearing, as a single-row radial roller bearing, withstands high transverse forces in continuous industrial operation. The open design allows for direct lubrication via the surrounding system, whilst the cylindrical bore facilitates straightforward mounting on the shaft. With an outer diameter of 170 mm and a width of 32 mm, this bearing fits into appropriately sized housing seats. Design engineers use this design primarily for mechanical bearings requiring stable guidance.

What loads can the NJ219-ECP cylindrical roller bearing accommodate?

Bearing arrangements subject to combined loads consisting of predominantly radial forces and single-sided axial guidance utilise this bearing type. Thanks to the line contact of the cylindrical rollers, the unit can withstand high radial loads. The NJ design features a solid flange on the inner ring, enabling the bearing to support not only radial forces but also axial forces from one direction. The system therefore functions as a support bearing in appropriate shaft arrangements.

What advantages does the polyamide cage in the NJ219-ECP cylindrical roller bearing offer?

The integrated polyamide cage guides the rolling elements with low vibration and reduces friction during operation. The low weight of the plastic reduces inertial forces, which promotes smooth running characteristics. The bearing covers a temperature range from –30 to +120 °C and, with its standard radial clearance, maintains a balanced operating clearance under normal operating conditions. An external housing seal must be fitted to protect against dirt and moisture.