Product Description SPROCKET 1/2” X 5/16” 08B SERIES SPROCKETS For Chain Acc.to DIN8187 ISO/R 606Tooth Radius r313.0mmRadius Width C1.3mmTooth Width b17.0mmTooth Width B17.2mmTooth Width B221.0mmTooth Width B334.9mm08B SERIES ROLLER CHAINS Pitch12.7...