SKF NJ 321 ECJ Cylindrical Roller Bearing, 105 mm Bore, 225 mm OD, 49 mm Width

The SKF Cylindrical Roller Bearing 321 (NJ 321 ECJ) is used in industrial machinery that requires high radial load capacity and moderate axial guidance. Common applications include gearboxes, pumps, compressors, and electric motors. Its NJ design allows the inner ring to accommodate axial displacement, making it suitable for shaft systems where thermal expansion must be managed.

The SKF Cylindrical Roller Bearing 321 has a 105 mm bore, 225 mm OD, and 49 mm overall width. It is a metric bearing with an NJ design, made from alloy steel. The manufacturer part number is NJ 321 ECJ, and the bearing industry number is 321. This general-purpose bearing is designed for high radial loads and moderate speeds.

You can source the SKF Cylindrical Roller Bearing 321 (NJ 321 ECJ) worldwide through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we supply genuine SKF bearings to industrial customers globally.

To select the correct SKF Cylindrical Roller Bearing 321, verify that the bore (105 mm), OD (225 mm), and width (49 mm) match your shaft and housing dimensions. Confirm the NJ design suits your axial displacement needs. Check that the alloy steel construction and load ratings meet your application's radial load and speed requirements. Consult SKF's technical documentation for fit and lubrication recommendations.