Cylindrical Roller Bearings SKF N308 ECP

The SKF N308 ECP cylindrical roller bearing, measuring 40x90x23 mm, offers a high-load-capacity free-running bearing solution for high radial forces.

This single-row N308 ECP cylindrical roller bearing is designed for bearing arrangements where purely radial forces act whilst allowing for axial displacement. As an open roller bearing, the unit can be integrated directly into existing lubrication circuits. SKF manufactures this bearing in the Explorer version with an optimised internal design. The outer ring is designed without a lubrication groove or lubrication bore. The component has a 40 mm bore, a 90 mm outer diameter and a width of 23 mm.

When is the N308 ECP cylindrical roller bearing used as a floating bearing?

As a classic floating bearing, this design compensates for axial length changes of the shaft relative to the housing within the bearing. The outer ring has no flanges, allowing the rollers to slide freely in the axial direction. Typical applications include bearing arrangements where operational thermal shaft expansion occurs. The combination of cylindrical rollers and line contact enables the bearing to accommodate high radial loads whilst maintaining high rigidity.

What are the distinctive features of the polyamide cage in the cylindrical roller bearing?

The integrated polyamide cage guides the rollers with low friction and is characterised by its low weight. The bearing is designed for a temperature range of -30 to +120 degrees. As the outer ring can be removed from both sides, the inner and outer rings are fitted separately. As an open component without integrated seals, an external housing seal protects the bearing location from the ingress of dirt.