Timing Gear – Timing gears, as the name implies, are used for various timing purposes. Also known as synchronous gears, they may be either spur or helical gears. They are generally found in automotive applications to control valve timing in engines.
Worm Gear – A worm gear includes a worm and a worm wheel working with each other. The worm resembles a screw and may also be known as a worm screw, while the worm wheel looks similar to a spur equipment or helical gear with hook helix position. This set is sometimes also known as a worm drive. Worm gears are the most compact type of gear and are often found in applications where space is limited.
Spur Gear – Spur gears are the most common kind of gear. They are accustomed to transmit movement between two parallel shafts and so are known to be highly efficient and generating a whole lot of power. Spur gears are known by several other names including straight gears, straight-cut gears, 
spur tires, and spur gearing. All of these have the same simple definition and can be utilized interchangeably.
Pump Equipment – A pump gear is the name for a equipment used in gear pumps. They consist of both a driver and powered gear and can become either spur or helical gears. Not to be confused, the term gear pump identifies the whole pump, while pump gears refers to the gears just. Gear pumps are positive displacement pumps, which means they pump a constant amount of liquid in each revolution. The volume of liquid in a revolution depends upon the Ground Helical Gear Racks geometry of the pump gears (i.e. number of teeth, diametrical pitch, etc.).
Spline – Splines are the ridges or the teeth (external spline) on a drive shaft that mesh with an equal quantity of like ridges or teeth (internal spline) in a mating piece with the goal of transferring torque in one member to the additional. The most typical splines are parallel essential splines, involute splines (closely linked to involute gears but with shorter tooth, root to suggestion), and serrations. Splines could be made by shaping, hobbing or broaching.
Sprocket – Sprockets, or sprocket wheels, are toothed wheels whose the teeth engage the links of chains or belts. Sprockets are distinguished from gears in that sprockets are never meshed together straight. There are several various kinds of sprockets, which includes silent chain, roller, and ladder sprockets.
Pinion Gear – A pinion is the smaller of two meshed gears in an assembly. Pinions gears can be either spur or helical type gears, and become either the traveling or driven gear, based on the application form. Pinion gears are used in many different types of gearing systems such as band and pinion or rack and pinion systems.