A Beginners Guide To Equipment


August 2,2017 |

Types Of Gearboxes You Need To Know And Apply For Various Uses There different types of gearbox designs that need to be learned to know what type of repair service is needed. Key factors such as speed, gear ratio, noise, torque, pressure and the orientation of the shafts are just some that will help differentiate the gearboxes. The types of gearbox are mentioned in the following. The spur gearbox is the most well-known and non-complex type of gearbox available. The way the radial teeth are positioned makes it able to handle gear ratios at high level and at the same time provide a level of efficiency at about 98 percent. The downside to spur gearbox is that it produces pressure and makes a lot of noises. But despite the noise, spur gearbox is ideal for low-speed and low-impact jobs. 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. There is slow engagement between the teeth of a helical gear thus producing no noise when being worked. This can produce a 94 to 98 percent work efficiency ideal for higher torques. There is a disadvantage on helical gearbox also as there is a high degree of thrust load which needs adequate oiling of shaft bearings.
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A type of gearbox that is composed of cone-formed teeth with two crossing shafts is the bevel gearbox. The motion it creates between shafts is very versatile. The axes of the bevel gearbox is able to bear significantly high pressures. This system’s work efficiency ranges from 93 to 97 level of percentage. It is the appropriate system for low gear ratios and low speed works.
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Spiral bevel and hypoid bevel are two sub-types of bevel gearboxes. The slow movement of the teeth of a spiral bevel makes it similar to helical. 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 other type which is the hypoid gearbox is somehow similar to the spiral but the axis are not touching at each other. It is ideal for high speed ratios as it produces a powerful 90 degree driving shaft but with no noises. Although, the performance level is low compared to the other types mentioned which only reaches to 85 percent efficiency. 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. The efficiency it produces reaches at about 98 percent even if it works at a slower speed. 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 possible because the load transmission is being shared between the multiple gears or planets. Each gearbox has its ideal use for various tools and produce a different level of work load and efficiency. For the gearboxes to work efficiently, there must be a maintenance done and repair if needed.





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