Cylindrical Roller Bearings SKF NU2218 ECP/C3

The SKF NU2218 ECP/C3 single-row cylindrical roller bearing (90x160x40 mm) accommodates high radial loads and compensates for axial length changes when used as a floating bearing.

The NU2218 ECP/C3 cylindrical roller bearing is a single-row roller bearing designed for demanding industrial applications. Thanks to the modified line contact of the cylindrical rollers, the bearing can withstand very high radial loads. In the NU design, the outer ring has two fixed flanges, whilst the inner ring is flangeless. This design allows for axial displacement of the shaft relative to the housing within the bearing itself.

In which applications is the NU2218 ECP/C3 cylindrical roller bearing used?

Design engineers and maintenance personnel primarily use this design as a conventional floating bearing. Typical applications include shaft mountings in mechanical and plant engineering, where operational thermal expansion of the shaft must be compensated for without constraint. Thanks to the low weight of the polyamide cage, the bearing also performs well during rapid acceleration and at higher speeds. As the inner ring can be removed from both sides, the unit can be fitted in sections, which simplifies maintenance work.

What are the advantages of the polyamide cage and the C3 clearance?

The suffix ECP denotes an optimised internal design featuring a polyamide cage. This type of cage operates quietly, absorbs shocks and reduces internal friction. The permissible temperature range extends from –30 to +120 degrees Celsius. The C3 bearing clearance indicates a slightly increased radial clearance as supplied. This ensures that the required operating clearance is maintained even with tight fits on the 90 mm shaft or in the event of temperature differences between the inner and outer rings.