Spur Gear Metric Module Pitch 0.8 Bore Diameter 5 mm Bore Type Plain Hub Diameter 10 mm Hub Projection 5 mm Face Width 4 mm Pitch Diameter 19.2 mm Material Duracon Pressure Angle 20 Degrees Bore Diameter Tolerance -0.05 to -0.3 mm Gear Construction Webbed Gear Shape S9