Cylindrical Roller Bearings SKF NU2318 ECJ

The SKF NU2318 ECJ cylindrical roller bearing is a separable bearing designed for high radial loads, with main dimensions of 90 x 190 x 64 mm.

As a single-row radial roller bearing, the NU2318 ECJ can withstand very high radial loads. With a bore of 90 mm, an outside diameter of 190 mm and a width of 64 mm, this unit is ideal for heavy-duty shaft mountings. The manufacturer, SKF, produces the bearing with an optimised internal design and a guided sheet steel cage. As this is an open design without sealing washers, you can integrate the rolling bearing directly into a site-supplied lubrication system using oil or grease.

What is the NU2318 ECJ cylindrical roller bearing suitable for in practice?

This single-row cylindrical roller bearing is particularly suitable for bearing arrangements subject to purely radial loads and requiring axial length compensation. Typical applications include gearboxes and industrial drive systems where shafts shift due to thermal expansion. Due to the line contact of the cylindrical rollers, the bearing can accommodate high transverse forces. As the NU design does not accommodate axial forces, designers usually combine this floating bearing with a separate fixed bearing.

What features does the NU non-locating bearing design with a removable inner ring offer?

The NU design is characterised by two fixed flanges on the outer ring and a flangeless inner ring. This allows the inner ring to be removed from both sides, which facilitates separate mounting on the shaft and in the housing. The bearing compensates for axial displacement of the shaft without constraint between the rollers and the inner ring raceway. The cylindrical roller bearing has standard radial clearance and dimensional accuracy to tolerance class P0 with enhanced P6 running accuracy. The permissible temperature range is from –30 to +150 degrees.