This 16011 C3 SKF bearing is a Open Type Deep Groove Radial Ball Bearing with a larger than standard radial internal clearance The bearing's dimensions are 55x90x11mm 55*90*11mm Bearing Features: Inner Ring Diameter (bore): 2.165 inch Outer Ring Diameter:3.543inch Width:0.433inch Basic Dynamic Load Rating Cr: 7.90kN Basic Static Load Rating Cor: 4.45kN Bearings Weight:0.050KG. Features: 1. High quality through hardened bearing steel used for basic construction. 2. Optimized raceway geometry and super finishing. 3. High precision accuracy and manufacturing consistency. 4. Proprietary high performance sealing options. 5. Premium grease as lubrication system.