Specifications:
Number of teeth: 50
Diametral pitch: 20
Pressure angle: 14.5 degrees
Pitch Diameter: 2.5 inch
Face width: 0.375 inch
Overall width: 0.400 inch
Bore: 0.377 inch hex hole
Material: 4140 steel, cold formed into gear teeth
Weight: 0.431 lbs.