HRC 12B1 sprocket-wheel z=30 with hubcap

Parameters of sprocket 12B1 3/4" Z=30. top diameter of the wheel: 190.5 mm. wheel pitch diameter: 182.25 mm. hub diameter: 95 mm. bore diameter: 20 mm. height: 40 mm. tooth thickness: 11.1 mm. material:C45 steel. number of teeth: 30.