Conveying Chain Sprocket; 2-1/2" Bore; 770 | 1050 | 1055 | 1060 | 7703 | 7705 | 7706 | 7708 | 7743; 1" Pitch; 31 Teeth; 9.93" Outside Diameter; 9.885" Pitch Diameter; C-Hub Both Sides; Finished Bore; Square; Straight Running | Side Flexing | Back Flexing; Thermoplastic