Timing Equipment – Timing gears, since the name implies, are used for various timing purposes. Also called synchronous gears, they could be either spur or helical gears. They are generally used in automotive applications to control valve timing in engines.
Worm Gear – A worm gear contains a worm and a worm wheel working together. The worm resembles a screw and is sometimes called a worm screw, as the worm wheel looks comparable to a spur gear or helical equipment with hook helix angle. This set is sometimes also known as a worm drive. Worm gears are the most compact type of gear and so are often found in applications where space is limited.
Spur Gear – Spur gears are the most typical kind of gear. They are used to transmit motion between two parallel shafts and are known to be highly efficient and creating a lot of power. Spur gears are known by quite a few other names including directly gears, straight-cut gears, spur tires, and spur gearing. These all have the same fundamental definition and can be used interchangeably.
Pump Gear – A pump gear may be the name meant for a equipment used in equipment pumps. They consist of both a driver and powered gear and can be either spur or helical gears. Not to be confused, the term gear pump identifies the entire 
pump, while pump gears identifies the gears only. Gear pumps are positive displacement pumps, meaning they pump a constant amount of fluid in each revolution. The volume of fluid in a revolution depends on the geometry of the pump gears (i.electronic. number of teeth, diametrical pitch, etc.).
Spline – Splines are the ridges or the teeth (exterior spline) on a drive shaft that mesh with an equal quantity of like ridges or the teeth (internal spline) in a mating piece with the purpose of transferring torque in one member to the other. The most typical splines are parallel essential splines, involute splines (closely related to involute gears but with shorter teeth, root to tip), and serrations. Splines can be produced by shaping, hobbing or broaching.
Ground Helical Gear Racks Sprocket – Sprockets, or sprocket wheels, are toothed tires whose teeth engage the links of chains or belts. Sprockets are distinguished from gears for the reason that sprockets should never be meshed together straight. There are several various kinds of sprockets, including silent chain, roller, and ladder sprockets.
Pinion Equipment – A pinion may be the smaller sized of two meshed gears within an assembly. Pinions gears can be either spur or helical type gears, and be either the driving or driven gear, based on the application form. Pinion gears are found in many types of gearing systems such as for example ring and pinion or rack and pinion systems.