SKF NU-309-ECM Radial Cylindrical Roller Bearing

SKF NU 309 ECM is a 45 mm bore, 100 mm outer diameter, and 25 mm width single-row radial cylindrical roller bearing from SKF’s NU-series, designed to handle substantial radial loads within a compact footprint. The ECM variant reflects SKF’s EC design approach, featuring improved guiding surfaces on the flange ridges and roller ends to increase axial load capacity in demanding service. Described as a steel, single-row cylindrical bearing, NU 309 ECM integrates a robust inner and outer race with precision rollers that maintain alignment under load while resisting deformation. This combination yields reliable radial support for industrial machinery where space is limited and consistent performance is expected across operating cycles. The EC-design enhancements provide higher axial load-carrying capability, making NU 309 ECM suitable for applications that require durable, high-load performance in a compact bearing.