1639 CYSD 20.638×50.8×14.288mm C 14.288 mm Deep groove ball bearings
Bearing number 1639 Size (mm) 20.638×50.8×14.288 Brand CYSD Bore Diameter (mm) 20.638 Outer Diameter (mm) 50.8 Width (mm) 14.288 d 20.638 mm D 50.8 mm B 14.288 mm C 14.288 mm r min. 0.6 mm Weight 0.138 Kg Basic dynamic load rating (C) 12.84 kN