Conveying Chain Sprocket; 40MM Bore; 12.7MM Pitch; 2120 Modular - Flat Top Size; 36 Teeth; A-No Hub Type; Finished Bore; Round; 145.4MM Outside Diameter; 144.602MM Pitch Diameter; Straight Running Modular - Flat Top Type; Polyamide Material; Grooved; Split; Keyway