The SKF 1306ETN9C3 is a genuine self-aligning ball bearing designed to accommodate static and dynamic misalignment. It features a 30mm bore diameter, 72mm outer diameter, and 19mm width. The 'ETN9' designation indicates a glass fibre reinforced polyamide 66 cage, while 'C3' denotes a radial internal clearance greater than normal, suitable for applications with higher operating temperatures or where shaft expansion is expected. This bearing is ideal for applications where angular misalignment may occur, such as in agricultural machinery, fans, and textile equipment.