Cylindrical Roller Bearings SKF NU2311 ECP/C3

The SKF NU2311 ECP/C3 single-row cylindrical roller bearing, with a 55 mm bore and C3 clearance, offers high radial load-carrying capacity for demanding industrial applications.

The NU2311 ECP/C3 cylindrical roller bearing serves as a heavy-duty radial bearing in machinery subject to high radial loads. With dimensions of 55 mm inner diameter, 120 mm outer diameter and 43 mm width, this open bearing can withstand high transverse forces thanks to the line contact between the rollers. SKF’s manufacturing process combines an optimised internal design with defined dimensional and running accuracy. As it does not feature integrated seals, the roller bearing is suitable for external lubrication circuits using oil or grease.

What is the NU2311 ECP/C3 cylindrical roller bearing suitable for in operation?

This roller bearing is primarily used in demanding applications involving high radial forces. As cylindrical rollers provide a wide contact area, the design can withstand high loads whilst maintaining good structural rigidity. The NU design functions here purely as a non-locating bearing. As the inner ring has no flanges and remains removable from both sides, the component compensates for thermal linear changes in the shaft relative to the housing within the bearing.

What do the NU design, polyamide cage and C3 clearance mean when selecting a bearing?

The NU design allows the inner and outer rings to be fitted separately, which facilitates installation and maintenance. The integrated polyamide cage guides the rollers quietly and flexibly within a temperature range of -30 to +120 degrees Celsius. The increased radial clearance (C3) counteracts bearing stress should tight shaft fits be selected or should temperature differences between the shaft and housing occur during operation.