Cylindrical Roller Bearings SKF NJ2307 ECP

The SKF NJ2307 ECP cylindrical roller bearing is an open support bearing with a 35 mm bore, an 80 mm outer diameter and a width of 31 mm, designed for high radial loads.

The single-row NJ2307 ECP cylindrical roller bearing can accommodate high radial loads thanks to the line contact of its rollers. This design from the SKF Explorer range features an optimised internal design and a lightweight polyamide cage. This open roller bearing has standard radial clearance and operates within a temperature range of -30 to +120 degrees Celsius. The outer ring is designed without a lubrication groove or lubrication bore.

What is the NJ2307 ECP cylindrical roller bearing suitable for?

This design is used in bearing arrangements subject to high radial loads. As cylindrical rollers provide a wide contact area, they transmit radial forces whilst maintaining high structural rigidity. When used as a support bearing, the bearing also absorbs axial forces from one direction, whilst allowing axial displacement in the opposite direction. This enables the bearing arrangement to compensate for changes in shaft length that may occur due to heating during operation.

What are the advantages of the NJ design with a polyamide cage?

The NJ design features two fixed flanges on the outer ring and one fixed flange on the inner ring. This allows the inner ring to be removed from one side, which facilitates the separate mounting of both rings onto the shaft and housing. The polyamide cage reduces the weight of the rotating components. Precise concentricity is ensured by running accuracy of class P6 or ABEC 3, with dimensional accuracy to P0 or ABEC 1.