Manufacturer Part Number: 40A16|Sprocket Type|Plate Roller ChainChain Pitch (Decimal Inch)|0.5000Chain Pitch (Inch)|1/2Iso Number|Pitch Diameter (Decimal Inch)|Pitch Diameter (mm)|Hub Diameter (mm)|Hub Diameter (Decimal Inch)|Chain Trade Size|40Outside Diameter (mm)|Outside Diameter (Decimal Inch - 4 Decimals)|2.8100Keyway Width|Keyway Width (Inch)|Keyway Width (Decimal Inch)|Keyway Width (mm)|Keyway Depth (mm)|Keyway Depth (Fractional Inch)|Keyway Depth (Decimal Inch)|Material|Bushing Series|Standards|Maximum Bore Diameter (Inch)|Bushing Number|Minimum Bore Diameter (Inch)|5/8Idler Size|Minimum Bore Diameter (Decimal Inch)|Thickness (Decimal Inch - 4 Decimals)|Minimum Bore Diameter (mm)|15.87Maximum Bore Diameter (Decimal Inch)|Maximum Bore Diameter (mm)|Number Of Teeth|16Product Service Code|3020UNSPSC Code|