Spur gears are cylindrical toothed gears widely used for transferring mechanical motion and controlling speed, power and torque between shafts. Their simple design features straight parallel teeth that are evenly positioned around the circumference of the cylinder. They are considered the most commonly used type of cylindrical gear. Spur gears come in a variety of designs, which vary according to the shape and thickness of the gear hub, while retaining the same tooth face.

Parameter Name	Parameter Value
Type	cylindrical
Teeth	straight-toothed
Other characteristics	depressed-center