Cylindrical Roller Bearings SKF NU320 ECP

The SKF NU320 ECP single-row cylindrical roller bearing with a 100 mm bore accommodates high radial loads and serves as an axial non-locating bearing.

The NU320 ECP cylindrical roller bearing is an open, single-row radial roller bearing in the Explorer design with an optimised internal structure. Thanks to the line contact between the cylindrical rollers and the raceway, this bearing can handle high radial loads. With key dimensions of a 100 mm bore, 215 mm outer diameter and 47 mm width, this roller bearing is suitable for demanding industrial applications. The manufacturer, SKF, produces the bearing with standard radial clearance and increased running accuracy to tolerance class P6.

In which applications does the NU320 ECP cylindrical roller bearing, as a non-locating bearing, compensate for changes in length?

Typical applications for the NU320 ECP cylindrical roller bearing include industrial gearboxes and heavy-duty drives where high radial forces are present. As the NU design functions purely as a non-locating bearing, the construction compensates for thermally induced changes in shaft length directly within the bearing. The inner ring has no flanges and can be removed from both sides. This allows the inner and outer rings to be fitted separately, which facilitates maintenance work and repairs in mechanical engineering.

What are the advantages of the polyamide cage and the NU design?

Thanks to its low weight, the polyamide cage reduces inertial forces during rapid speed changes and contributes to quiet operation. The combination of the polyamide cage and the open design allows for an permissible operating temperature range of -30 to +120 degrees Celsius. As the outer ring is designed without a groove or lubrication bore, the lubricant is supplied via the housing design. Proper lubrication protects the open bearing from premature wear.