BB30 6806-2RS ABEC-3 Solid Lubrication Technology Bearing for Bicycle Bottom Bracket. Part Code: 6806-2RS/SLT Bearing ID: 30.00 mm Bearing OD: 42.00 mm Bearing Thickness: 7.00 mm Precision: ABEC-3 / P6 Material: Chromium Steel GCR15 / 100CR6 (Races & Balls) Lubrication: SOLID LUBRICATION TECHNOLOGY Cage: Steel-caged Seal: Dual-sealed 2RS Used on: Bicycle Bottom Bracket Interchange with: 6806 2RS, 6806 LBLU, 6806 RS/RZ