The 90 mm insulated steel sleeve bearing is designed for use with bearing numbers 6011, 6210, and 6308, featuring an outer diameter of approximately 94 mm with a tolerance of ±0.05 mm. Sleeve lengths are available in 30 mm, 40 mm, or 50 mm, providing flexibility for various applications. Constructed from durable steel with insulation properties, this sleeve bearing ensures reliable performance and extended service life in electric motors and machinery. Its precise dimensions and compatibility with standard deep groove ball bearings make it ideal for maintaining alignment and reducing wear in rotating assemblies.