The 90 mm steel sleeve bearing compatible with bearing numbers 6011, 6210, and 6308 features an outer diameter of approximately 94 mm with a tolerance of ±0.05 mm and is available in sleeve lengths of 30 mm, 40 mm, or 50 mm. Designed for robust industrial applications, this sleeve bearing supports high radial loads and ensures precise fitment with corresponding deep groove ball bearings such as the 6308, which measures 40 mm inner diameter, 90 mm outer diameter, and 23 mm width. The steel construction offers durability and resistance to wear, making it suitable for high-speed and high-load environments. Typical applications include electric motors and water pump engine parts.