Spur gears are a type of cylindrical equipment, with shafts that are parallel and coplanar, and the teeth that are planetary gearbox directly and oriented parallel to the shafts. They’re arguably the easiest and most common type of gear – simple to manufacture and ideal for an array of applications.
One’s teeth of a spur gear possess an involute profile and mesh one tooth at a time. The involute type implies that spur gears just create radial forces (no axial forces), but the method of tooth meshing causes high pressure on the gear tooth and high noise production. Due to this, spur gears are typically used for lower acceleration applications, although they can be used at almost any speed.