Cylindrical Roller Bearings SKF NJ2311 ECP

The SKF NJ2311 ECP single-row cylindrical roller bearing (55x120x43 mm) acts as a support bearing with a polyamide cage for high radial loads.

The SKF NJ2311 ECP cylindrical roller bearing is a radial high-load-capacity rolling bearing for demanding industrial applications. With a bore of 55 mm, an outer diameter of 120 mm and a width of 43 mm, the design can withstand considerable radial forces. As an open bearing, the bearing housing requires external sealing and lubrication. The optimised internal design ensures even load distribution across the entire row of rollers.

What loads and movements can the NJ2311 ECP accommodate?

This bearing is primarily suitable for shaft mountings subject to heavy radial loads. Thanks to the NJ design, the component also accommodates one-sided axial forces. At the same time, the design allows for axial displacement of the shaft in the opposite direction. Typical applications include gearbox and shaft designs where thermal linear expansion of the shaft must be compensated for without inducing residual stresses.

What is the function 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 for assembly, which facilitates installation and maintenance. The integrated polyamide cage guides the cylindrical rollers with low noise and low friction within a temperature range of -30 to +120 degrees Celsius. Furthermore, the bearing offers increased running accuracy to tolerance class P6 with normal radial clearance.