Cylindrical Roller Bearings SKF N311 ECP

The SKF N311 ECP cylindrical roller bearing, with a 55 mm bore and an outer diameter of 120 mm, offers high radial load-carrying capacity when used as a non-locating bearing.

The SKF N311 ECP cylindrical roller bearing is a single-row roller bearing with an optimised internal design in the Explorer series. Thanks to its cylindrical rolling elements, the bearing can accommodate high radial loads. As an open design without seals, this version runs directly in the housing using lubricating oil or grease. Thanks to its standard radial clearance, the bearing is suitable for common fit conditions and moderate operating temperatures in everyday industrial use.

What is the N311 ECP cylindrical roller bearing suitable for in operation?

This cylindrical roller bearing is primarily used where high radial loads are present and axial length changes in the shaft need to be compensated for. The N design features two fixed flanges on the inner ring, whilst the outer ring is flangeless and removable from both sides. This allows the bearing to function as a non-locating bearing. Typical applications include bearing arrangements where thermal longitudinal expansion of the shaft must occur without axial constraint forces within the bearing.

What are the features of the polyamide cage in the ECP design?

The polyamide cage guides the rollers with low friction and is characterised by its elastic damping properties. Compared to solid metal cages, the lightweight material reduces inertial forces during rapid acceleration. The bearing covers a temperature range from -30 to +120 degrees. With dimensional accuracy to P0/PN or ABEC 1 and increased running accuracy to P6 or ABEC 3, the unit ensures low-vibration concentricity.