Cylindrical Roller Bearings SKF NU2215 ECJ

The SKF NU2215 ECJ cylindrical roller bearing, with a 75 mm bore, is a single-row non-locating bearing capable of withstanding high radial loads.

The SKF NU2215 ECJ cylindrical roller bearing is a radial-load-capable rolling bearing with a 75 mm bore, an outer diameter of 130 mm and a width of 31 mm. Thanks to its optimised internal design and robust sheet-steel cage, this design is suitable for demanding industrial bearing arrangements. The dimensional accuracy complies with tolerance class P0/PN (ABEC 1), whilst the running accuracy is specified as P6 (ABEC 3). As an open rolling bearing without sealing washers, it is suitable for operating temperatures ranging from -30 to +150 degrees.

What is the NU2215 ECJ cylindrical roller bearing suitable for?

This roller bearing is used in bearing arrangements where purely radial loads need to be supported. Thanks to the line contact of the rollers, the NU design can withstand high transverse forces. Furthermore, the version with standard radial clearance compensates for operational heating of the components. Design engineers use the open design primarily in enclosed assemblies with an external lubricant supply via oil or grease lubrication.

What are the advantages of the NU loose bearing design with a removable inner ring?

The NU design features two fixed flanges on the outer ring, whilst the inner ring is flangeless and removable from both sides. This enables the bearing to compensate for thermal length changes in the shaft directly within the rolling element set, without generating axial stresses in the structure. The separable design also facilitates installation, as the inner and outer rings can be fitted separately onto the shaft and housing. As the outer ring has no groove or lubrication bore, the lubricant is supplied via the housing.