The 160 mm cast iron sleeve bearing compatible with bearing numbers 6021, 6218, and 6315 features an outer diameter of approximately 166 mm (6.535 inches) with a tolerance of ±0.05 mm and sleeve lengths available in 40, 50, and 60 mm. The insulated cast iron construction provides durability and electrical insulation, making it suitable for heavy-duty industrial applications. The 6315 deep groove ball bearing, often paired with this sleeve, has dimensions of 75 mm inner diameter, 160 mm outer diameter, and 37 mm width, designed for high rotational speeds up to 4,100 RPM, with dynamic load capacity around 25,500 lbf. It offers options with metal shields or rubber seals and C3 internal clearance for thermal expansion accommodation during operation. These components are ideal for electric motors, factory automation, and agricultural machinery requiring robust, high-performance bearing solutions.