The 85 mm steel shaft sleeve bearing compatible with bearing numbers 6017, 6217, and 6317 features precise dimensions with an outer diameter of approximately 85 mm and lengths varying from 40 mm to 60 mm depending on the model. These steel sleeve bearings provide robust insulation and support for deep groove ball bearings, enhancing load distribution and reducing friction in industrial applications. The 6317 bearing, for example, measures 85x180x41 mm with a dynamic load rating of 29,900 lbs and a limiting speed up to 4,400 RPM with oil lubrication. These components are made from high-quality chrome steel, ensuring durability and high rigidity for heavy machinery and automation uses. Sleeve bearings are designed to fit snugly with their respective ball bearings, improving operational stability and lifespan.