Martin S1014 Spur Gear, 14.5&deg; Pressure Angle, High Carbon Steel, Inch, 10 Pitch, 5/8" Bore, 1.6" OD, 1.000" Face Width, 14 Teeth Transmits torque between parallel shafts to provide rotational power to another part of a motorized system Pressure angle of 14.5 degrees for a higher contact ratio between gears, resulting in quieter operation than larger pressure angles Diametral pitch of 10 for applications requiring a balance between transferring torque and controlling changes in speed and direction of rotation with precision High carbon steel for tensile strength and hardness