The 72 mm insulated cast iron sleeve bearing designed for use with bearing numbers 6207 and 6306 features an outer diameter of approximately 76 mm with a tolerance of ±0.05 mm and is available in lengths of 30, 40, or 50 mm. The 6207 deep groove ball bearing paired with this sleeve has an inner diameter of 35 mm, an outer diameter of 72 mm, and a width of 17 mm. It is a single-row, open or shielded bearing capable of handling high rotational speeds and dynamic loads, made from steel with options for rubber or metal seals. The 6306 bearing variant measures 30 mm inner diameter, 72 mm outer diameter, and 19 mm width, designed for robust performance with electric motor quality standards. These components provide low friction, accommodate radial and axial loads in both directions, and require minimal maintenance, making them suitable for industrial and automation applications. Voltage ratings and capacitance are not applicable as these are mechanical bearing components.