1.Product Overview DG407216 non-standard single-row open deep groove ball bearing, overall dimension 40mm inner bore × 72mm outer diameter × 16mm width, DG series dedicated transmission bearing matching vehicle automatic gearbox differential and auxiliary shafts. Open structure without rubber seals, equipped with stamped low-carbon steel cage and standard C0 internal clearance. It bears radial load and minor bidirectional axial load, runs stably and low-noise under long-term