Cylindrical Roller Bearings SKF NJ2304 ECP

The SKF NJ2304 ECP cylindrical roller bearing can accommodate high radial loads with a 20 mm bore, 52 mm outer diameter and 21 mm width.

This single-row NJ2304 ECP cylindrical roller bearing from the Explorer performance class combines a compact design with an optimised internal structure. With a width of 21 mm, the design can withstand considerable radial forces. Designed as an open bearing, the bearing housing requires external sealing and a lubricant supply in the adjacent structure. The polyamide cage guides the cylindrical rollers quietly at operating temperatures ranging from –30 to +120 degrees.

In which installation situations does the NJ2304 ECP support bearing prove its worth?

The NJ design functions as a support bearing for shaft arrangements subject to high transverse forces. The outer ring has two solid flanges, whilst the inner ring has one solid flange. As a result, the bearing arrangement absorbs axial forces from one direction in addition to the high radial loads. Axial displacement in the opposite direction is maintained, which compensates for thermal length changes in the shaft.

What installation features does the single-side removable inner ring offer?

The single-side removable inner ring enables the inner and outer ring assemblies to be fitted separately. Shaft and housing components can be assembled separately and then joined with a precise fit. This design features a standard radial bearing clearance and operates with dimensional accuracy to P0/PN (ABEC 1) and running accuracy of class P6 (ABEC 3). The smooth outer ring has no groove or lubrication bore, which is why the lubricant is supplied from the side.