The Most Common Gearbox Types Transmission boxes are also known as gearbox which is the second part of the power in vehicles. The the main function of the gear system is to change the torque and the speed of the vehicle, according to the road and load conditions. Transmission box adjust the engine speed into torque as it moves up the hills and when it’s important for the auto to do so. Gearbox can also be defined as the torque converter. There are many types of gearbox in the automobile industry. They include the following, Spur gearboxes, helical gearboxes, bevel gearboxes, spiral gearboxes, hypoid gearboxes among others. Spur gear systems are the largely reasonable and direct gearboxes available. The order in which their radial teeth are situated enables them to handle high gear ratios thus giving exceedingly high level of helpfulness. Spur gearboxes have their demerits also. They generally tend to generate a lot noise and pressure, and that the reason why spur gearboxes are popularly used for low-speed and low-contact tasks where loud noise is endurable. Bevel transmission boxes are made up of bridge rods and cone-style that support versatile movement in the area directly linking these shafts. They can manage a considerable amount of pressure due to the feature axes and how they are fitted with care. Bevel transmission boxes have lower efficiency levels than helical and spur gearboxes. The bevel transmission boxes do work well with smaller gear ratios, conceivably, even more, better than helical gear systems. Helical transmission boxes do look like spur gears although their teeth are not placed in a crossway order in the revolving axis. Although these gears are placed at an angle, often at a right angle. They have less load capacity due to the parallel positioning of their teeth. Their teeth positioning, that is in helical gears, tolerate reticent engagement consequently resulting in the job that is drastically quieter than that of spur gearboxes. The loading orders of helical gear boxes permit them to work with sophisticated torques even though their usefulness variety are alike. These types of transmission boxes have limitations too. The standard of medial push they utilize, require the use of enough oiled shaft bearings. Spiral gear systems are alteration of bevel types, and they present benefits like in helical transmission boxes systems with teeth that are linked progressively. Gradual engagement of gear system have brought about smoother, and reduction of noise in spiral gear system rods. Thus the efficiency standards in spiral gear systems is very high. Hypoid transmission boxes look like spiral bevel kind, but their drive shafts only do not touch. Hypoid gearboxes function properly with right angle impel shaft. They result in lesser noise, and they are powerful than spiral bevel gearboxes. High speed ratio can be managed with this system.