B57
B57 KOYO 7.938×12.7×11.11mm Outer Diameter 12.7mm Needle roller bearings
Bearing number B57 Size (mm) 7.938×12.7×11.11 Brand KOYO Bore Diameter (mm) 7.938 Outer Diameter (mm) 12.7 Width (mm) 11.11 Fw 7.938 mm D 12.7 mm C 11.11 mm Weight 0.005 Kg Basic dynamic load rating (C) 5.55 kN Basic static load rating (C0) 7.95 kN