DIGITAL PREVIEW Not a Photo
This is a a cylindrical gear with straight toothing, technical data as follows:
Module = 1
Teeth number (Z) = 12
Pressure Angle (Alfa) = 20°
Tooth angle (Beta) = 0° (Straight)
Tooth width = 10 mm
Hole Ø = 5mm
Keyway = 2mm width x 1mm deep