The 6409-C is a single row deep groove ball bearing with a bore of 45.0 mm, outside diameter of 120.0 mm, and width of 29.0 mm, weighing 1.48 kg. It belongs to Generation C and is fitted with a steel sheet metal cage, JN design. Radial internal clearance is CN (Group N). The bore type is Z. The bearing supports a limiting speed of 8500 1/min and a reference speed of 7100 1/min. The CN clearance places this bearing within standard operating parameters, suitable for straightforward radial load applications without special preload requirements. The steel sheet metal cage of JN design provides ball guidance and separation typical for this construction, contributing to stable operation across the stated speed range. As a single row deep groove ball bearing, it accommodates radial loads along with limited axial loads in both directions, with the Z bore type designation indicating a specific bore configuration as supplied by the manufacturer.