Cylindrical Roller Bearings SKF NJ2209 ECP

The SKF NJ2209 ECP cylindrical roller bearing is a single-row support bearing with a 45 mm bore, designed for high radial loads and single-sided axial guidance.

The SKF NJ2209 ECP cylindrical roller bearing is characterised by its optimised internal design in the Explorer version. As an open, single-row roller bearing with dimensions of 45 x 85 x 23 mm, it is primarily designed to accommodate heavy radial loads. The cylindrical roller geometry creates line contact between the rollers and raceways. This gives the bearing outstanding rigidity whilst maintaining a compact footprint.

In which applications does the NJ2209 ECP prove its worth?

This design is primarily used in bearing arrangements subject to significant radial forces. As a support bearing, it guides the shaft in an axial direction whilst specifically absorbing axial forces from that direction. The inner ring has a single flange, whilst the outer ring is designed with two flanges. This design therefore allows for a defined axial displacement to compensate for thermal linear expansion.

What is the function of the polyamide cage and the thrust bearing design?

The suffix ECP refers to a lightweight polyamide cage and the optimised roller guidance of the Explorer series. This cage reduces friction and noise and is suitable for a temperature range of –30 to +120 degrees. As the inner ring can be removed from one side, the shaft and housing can be fitted separately with ease. As an open component without an integrated seal, the bearing requires an external sealing solution in the adjacent structure.