Cylindrical Roller Bearings SKF NJ224 ECP

The SKF NJ224 ECP cylindrical roller bearing offers high radial load-carrying capacity with dimensions of 120 × 215 × 40 mm and accommodates axial forces on one side.

The NJ224 ECP cylindrical roller bearing is a single-row radial rolling bearing in the SKF Explorer performance class with an optimised internal design. Designed for demanding industrial operating conditions, this open bearing accommodates high radial loads. With a bore diameter of 120 mm, an outside diameter of 215 mm and a width of 40 mm, this unit is suitable for high-load shaft supports in general heavy machinery and gearbox construction.

In which applications is the NJ224 ECP cylindrical roller bearing used?

This bearing is primarily used where high radial loads must be supported and the shaft is to be guided axially in one direction. Typical applications include mechanical drive trains and industrial plant with single-sided guidance. Owing to its design as a support bearing, the cylindrical roller bearing allows axial length changes of the shaft relative to the surrounding bearing housing to be compensated in the opposite direction without inducing residual stresses.

What advantages do the NJ design and polyamide cage offer during installation?

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 installation and subsequent maintenance work, as the inner and outer rings can be fitted separately from one another. The integrated polyamide cage is characterised by its low weight and elastic material properties, which support favourable running characteristics within the operating temperature range of -30 to +120 °C.