The 72 mm insulated cast iron sleeve bearing designed for use with 6207 and 6306 ball bearings features an outer diameter of approximately 76 mm with a tolerance of ±0.05 mm and sleeve lengths available in 30 mm, 40 mm, or 50 mm. The 6207 deep groove ball bearing has dimensions of 35 mm inner diameter, 72 mm outer diameter, and 17 mm width, offering a single row raceway with options for open, shielded (ZZ), or sealed (2RS) configurations. These bearings provide low friction, high-speed capability, and high dynamic load ratings, suitable for rotary and automation applications. The cast iron sleeve bearing provides insulation and durability, enhancing bearing performance and lifespan in industrial environments. Voltage ratings and capacitance are not applicable as these are mechanical components.