Gearboxes Of Different Types And The Efficiency Of Work It Produces Sometimes, repairs can get complicated when you do not know what type of gearbox is affected. There are important factors that distinguishes these gearboxes such as noise, speed, gear ratio, pressure, shaft movement, torque, etc. The types of gearbox are mentioned in the following. The most common and simple type is the spur gearbox. The position of the radial teeth allow it to provide up to 98 percent level of work efficiency which is usually for high gear ratios. A drawback to this type of gearbox is the various noises and pressure it creates. This disadvantage seem to work for low-speed and low-impact works only. Another type is the helical gearbox that has some similarities to the spur gearbox. The difference is on the radial teeth positioning which is not laterally revolving the axis but positioned at a 90 degree angle. The position is presented crossed or parallel. With the position of the gear teeth to which it slowly engages, there is no noise produced unlike the spur gearboxes. This can produce a 94 to 98 percent work efficiency ideal for higher torques. The disadvantage of this is the degree of medial thrust that requires an adequate amount of oil to the shaft bearings.
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The bevel gearbox is another type that is composed of two shafts crossing at each other and have teeth that are shaped like a cone. This produces a versatile movement in between the shafts. The bevel gearbox features axes of the shafts that can handle a high amount of pressure. The efficiency of the work it produces reaches to about 97 percent. This also works well with low gear ratios and suited for low-speed type of work.
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The bevel gearbox has two types which are the spiral bevel gears and the hypoid bevel gears. The slow movement of the teeth of a spiral bevel makes it similar to helical. Therefore, both systems run smoothly producing less noise. The work efficiency these two make reach at a percentage level of 98. The hypoid bevel has similar features to the spiral but its axis do not intersect. It is ideal for high speed ratios as it produces a powerful 90 degree driving shaft but with no noises. The down side, however, is the work efficiency it makes with only 85 percent. The fourth general type of gearbox is the planetary which is composed of multiple gears called planets that rotates around an inner gear or the sun. It works at low speed but produces 98 percent level of efficiency. The planetary gearbox produces torque three times the level produced by spur gears, is very compact and also creates high gear differential for each stage. This is possible because the load transmission is being shared between the multiple gears or planets. The efficiency of each gearbox will depend on various factors and uses. For the gearboxes to work efficiently, there must be a maintenance done and repair if needed.