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How To Differentiate The Various Types Of Gearboxes There different types of gearbox designs that need to be learned to know what type of repair service is needed. The gearboxes produce different results for speed, pressure, gear ratio, torque, shaft orientation and noise that will let you know which type. Here are the various gearbox types that you need to know. Considered as the simple and typical type of gearbox available 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. Although this simple type works well, it tends to make noises and pressure. But despite the noise, spur gearbox is ideal for low-speed and low-impact jobs. Helical gearbox is another type that is much alike with the spur gears. Its difference is the position of the teeth in which it is not lateral to the rotating axis but rather positioned angular at 90 degrees. The position is presented crossed or parallel. There is slow engagement between the teeth of a helical gear thus producing no noise when being worked. Therefore, helical gearbox is desirable for high torques as it provides 98 percent level of efficiency. The drawback for helical gearboxes is that the shaft bearings are constantly oiled because the thrust load it produces because of the inclined contact.
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Another type is the bevel gearbox which have cone-shaped teeth and have two crossing shafts. 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 level of efficiency of a bevel gearbox can do a 97 percent level of work. It is the appropriate system for low gear ratios and low speed works.
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The bevel gearbox has two types which are the spiral bevel gears and the hypoid bevel gears. Helical and spiral bevel have similarities which is the slow motion of the teeth. There is less noise made with these two types of gearboxes. It also produces the same high level of work efficiency reaching at 98 percent. The hypoid bevel has similar features to the spiral but its axis do not intersect. This creates a 90 degree level of drive shafts that is more powerful but quieter than the spiral bevel and which makes it desirable for high speed ratios. The down side, however, is the work efficiency it makes with only 85 percent. The planetary gearbox is another type as it is created similar to a planet systems with gears or planets revolving around a sun or another gear. It works at low speed but produces 98 percent level of efficiency. This system is compact, produce high gear differentials per stage, and also produces three times the level of torque compared to the work of the spur gearbox. This is due to the sharing of load between the planets. There are many aspects and uses of gearboxes and each has different efficiency levels. For the gearboxes to work efficiently, there must be a maintenance done and repair if needed.