Cylindrical Roller Bearings SKF NU320 ECJ/C3

The SKF NU320 ECJ/C3 cylindrical roller bearing, measuring 100x215x47 mm, with C3 radial clearance and a removable inner ring, offers a robust solution for radial loads.

The NU320 ECJ/C3 cylindrical roller bearing is a single-row, open-type radial roller bearing designed for demanding industrial applications. With a bore of 100 mm, an outer diameter of 215 mm and a width of 47 mm, this rolling bearing primarily accommodates high radial loads. The optimised internal design, combined with the precision-guided sheet steel cage, ensures stable running behaviour at operating temperatures ranging from –30 to +150 degrees Celsius. The outer ring is designed without a lubrication bore or ring groove.

What applications is the NU320 ECJ/C3 cylindrical roller bearing suitable for?

Bearing arrangements subject to high radial forces and thermal length changes in the shaft typically use this design as a non-locating bearing. As the inner ring is designed to be removable from both sides, the bearing compensates for displacements along the shaft axis relative to the housing with low friction. This split design also makes installation considerably easier, as the inner and outer rings can be mounted independently of one another onto the shaft and housing bore.

What are the advantages of C3 bearing clearance and a sheet steel cage?

The C3 designation indicates a slightly increased radial clearance compared with the standard version. This clearance helps to prevent unwanted stress on the rollers should temperature gradients occur during operation or if tight fits cause the inner ring to expand. The dimensionally stable sheet steel cage (abbreviation ECJ) guides the cylindrical rollers evenly and has proven its worth in continuous industrial use.