The 100 mm cast iron sleeve bearing designed for bearing sizes 6013, 6211, and 6309 features an approximate outer diameter of 106 mm (4.174 inches) with a tolerance of ±0.05 mm and a sleeve length of 50 mm. This oversized sleeve bearing is constructed from durable cast iron, providing robust insulation and support for deep groove ball bearings such as the 6309, which measures 45 mm inner diameter, 100 mm outer diameter, and 25 mm width. The 6309 bearing is made of GCr15 chrome steel, supports high rotational speeds, and is available with steel shields or rubber seals for protection against contaminants. These components are ideal for electrical machines requiring reliable radial load handling and long service life.