Cylindrical Roller Bearings SKF N322 ECP

The SKF N322 ECP cylindrical roller bearing is a single-row idler bearing with a polyamide cage and a 110 mm bore, designed to accommodate high radial loads.

The N322 ECP cylindrical roller bearing is an open, single-row radial roller bearing from SKF’s Explorer range. With key dimensions of 110 mm inside diameter, 240 mm outside diameter and 50 mm width, this bearing accommodates high radial loads. The free-end bearing design allows for axial displacement of the shaft directly within the bearing. Thanks to its optimised internal design and polyamide cage, the assembly is suitable for operating temperatures between –30 and +120 degrees Celsius.

In which installation scenarios is the N322 ECP cylindrical roller bearing used?

Design engineers primarily use the N322 ECP cylindrical roller bearing where high radial loads occur and changes in shaft length need to be accommodated. As a non-locating bearing, the design does not absorb axial forces but compensates for thermal expansion without constraint. It is typically used in shaft mountings with a defined free-end bearing area. The open design requires integration into the lubrication system of the surrounding structure, as well as external sealing of the housing.

What are the key features of the N design with a polyamide cage?

In the N design, the inner ring has two fixed flanges, whilst the outer ring is flangeless and removable from both sides. This geometry makes it considerably easier to fit the bearing rings separately. The bearing has a standard radial clearance and a permissible temperature range of -30 to +120 degrees Celsius. With dimensional accuracy to tolerance class P0/PN (ABEC 1) and finer running accuracy to P6 (ABEC 3), the component meets demanding specifications for concentricity.