Screw Gear Bore Diameter 15 mm Bore Diameter Tolerance H7 Bore Type Plain Face Width 22 mm Gear Shape S1 Gear Type Screw Hub Diameter 40 mm Hub Projection 16 mm Material Stainless Steel Maximum Teeth Hardness 187 HB Metric Module Pitch 2.5 Number of Teeth 15 Outside Diameter 58.03 mm Overall Length 38 mm