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Gearboxes Of Different Types And The Efficiency Of Work It Produces 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. The most common and simple type is the spur gearbox. High gear ratios are possible for this gearbox because of the position of the radial teeth which efficiently works 94 to 98 percent level. A drawback to this type of gearbox is the various noises and pressure it creates. 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 teeth of the helical gearbox are not positioned in a lateral manner to the spinning axis, which is different to the spur gearbox, and are laid at an angle of 90 degrees. Therefore, its position is laid out parallel or crossed. 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 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. This also works well with low gear ratios and suited for low-speed type of work.
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Spiral bevel and hypoid bevel are two sub-types of bevel gearboxes. Helical and spiral bevel have similarities which is the slow motion of the teeth. The process then produces smooth work with lesser noise produced. 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. 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. But regarding its efficiency, it only produces 85 percent of work. The type of gearbox that is made with many gears revolving at an inner gear is called the planetary gearbox. The efficiency it produces reaches at about 98 percent even if it works at a slower speed. 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 due to the sharing of load between the 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.