Timing Equipment – Timing gears, since the name implies, are used for various timing purposes. Also known as synchronous gears, they may be either spur or helical gears. They are often found in automotive applications to regulate valve timing in engines.
Worm Equipment – A worm gear contains a worm and a worm wheel functioning jointly. The worm resembles a screw and is sometimes known as a worm screw, while the worm wheel looks comparable to a spur equipment or helical gear with hook helix position. This set is sometimes also called a worm drive. Worm gears will be the most compact type of gear and so are often found in applications where space is limited.
Spur Equipment – Spur gears are the most typical type of gear. They are accustomed to transmit motion between two parallel shafts and so are known for being highly efficient and generating a whole lot of power. Spur gears are known by quite a few other names including directly gears, straight-cut gears, spur wheels, and spur gearing. These all have the same basic definition and can be used interchangeably.
Pump Gear – A pump gear is the name intended for a equipment used in equipment pumps. They contain both a driver and powered equipment and can be either spur or helical gears. Not to be confused, the word gear pump refers to the whole pump, while pump gears identifies the gears only. Gear pumps are positive displacement pumps, which means they pump a continuous amount of fluid in each revolution. The volume 
of liquid in a revolution depends on the geometry of the pump gears (i.e. number of the teeth, diametrical pitch, etc.).
Spline – Splines are the ridges or teeth (exterior spline) on a drive shaft that mesh with an equal quantity of like ridges or tooth (internal spline) in a mating piece with the purpose of transferring torque in one member to the additional. The most typical splines are parallel crucial splines, involute splines (carefully linked to involute gears but with shorter teeth, root to suggestion), and serrations. Splines can be produced by shaping, hobbing or broaching.
Sprocket – Sprockets, or sprocket wheels, are toothed tires whose teeth engage the links of chains or belts. Sprockets are distinguished from gears in that sprockets should never be meshed together directly. There are Ground Helical Gear Racks several various kinds of sprockets, including silent chain, roller, and ladder sprockets.
Pinion Equipment – A pinion may be the smaller of two meshed gears in an assembly. Pinions gears could be either spur or helical type gears, and be either the generating or driven gear, depending on the application form. Pinion gears are found in many different types of gearing systems such as band and pinion or rack and pinion systems.
