Gears are one of the oldest tools, used for centuries to transmit motion. Today, numerous machines, from motors to mining equipment, use spur gears, bevel gears and more to function. However, when a gear breaks, you will often be unable to find a replacement ready-made, and will need to order custom gears through a custom gear manufacturing company. In these cases, it is helpful to know which type of gear you need to replace. Below are a number of common gears to help you order your custom made gears.
We begin with the external gear, which is likely the most easily recognizable type of gear: an external gear has its teeth on the outside of the circle or cone. They are used for a number of purposes, including use in engines and pumps.
Next, we have a bevel gear, which is an extremely versatile gear due to its ability to typically change the operating angle. However, they are usually used on shafts mounted at a 90-degree angle. There is also another form of this type of gear, called a straight bevel gear, in which the teeth are straight and parallel to the cone’s generators.
Another type of gear comes in a set called a worm and gear set; this is a simple way to transmit a high level of torque. Additionally, a worm gear is typically used with spur gears, also called helical gears.
Finally, rack and pinion gear sets are likely the type of gear set you will need if you are attempting to repair a locomotive that operates on a track. A rack, or toothed strip, is used with a typical circular gear, most often a type called a pinion.
If you have been able to identify the custom gear you need from these descriptions, you should be easily able to order a gear of this type from gear manufacturing companies. However, if you are unsure, take note of its function, dimension, and other information before contacting a gear manufacturing company to discuss your options.