Cylindrical Roller Bearings SKF NJ2205 ECP

The SKF NJ2205 ECP cylindrical roller bearing combines compact dimensions of 25 × 52 × 18 mm with a high radial load-carrying capacity as a single-row support bearing.

The NJ2205 ECP cylindrical roller bearing is a single-row roller bearing in the SKF Explorer design with an optimised internal structure. With a bore of 25 mm, an outside diameter of 52 mm and a width of 18 mm, this roller bearing can accommodate high radial loads. Thanks to the NJ design, which features two fixed flanges on the outer ring and one fixed flange on the inner ring, the component functions as a support bearing. This allows shafts to be guided in one axial direction, whilst axial displacement in the opposite direction is permitted.

What loads can the NJ2205 ECP cylindrical roller bearing withstand?

This single-row bearing is primarily designed for bearing arrangements subject to significant radial loads. The support bearing design allows thermal length changes of the shaft to be compensated for in one direction whilst simultaneously accommodating axial guidance forces in the opposite direction. As the open bearing has no integrated seal, it can be flexibly integrated into lubricated housing designs. The permissible temperature range extends from –30 to +120 degrees.

What are the advantages of the polyamide cage in the NJ2205 ECP?

The suffix ‘ECP’ indicates the polyamide cage and the optimised internal design of the Explorer series. The polyamide material reduces the cage’s weight, which dampens inertial forces during speed changes and promotes low-friction operation. Another advantage is its ease of disassembly: the inner ring can be removed from one side, allowing the inner and outer rings to be mounted independently on the shaft and housing. With standard radial bearing clearance and a running accuracy of P6 or ABEC 3, the bearing fits perfectly.