The 4210 ATN9 SKF is a deep groove ball bearing with an internal diameter (Øint) of 50 millimeters, an external diameter (Øout) of 90 millimeters, and a width (W) of 23 millimeters. It is manufactured using bearing steel, and is produced by SKF, one of the world's leading bearing manufacturers. The bearing is designed to reduce rotational friction and support both radial and axial loads, ideal for applications in the automotive, industrial and agricultural sectors.