Transmission Boxes Types Gearbox which can be called transmission box is an element of power in auto. 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. This gearboxes are at times referred to the torque converter. There are many types of gearbox in the automobile industry. In the auto industry, there are a good number of gear systems which include, helical transmission boxes, spiral gear system, bevel transmission boxes, hypoid gear systems and spur transmission boxes. 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 gear systems have their shortcomings too. They usually tend to create a lot of pressure and noise, and that the reason why they are generally desirable used for low-speed and low-impact jobs where loud noise is tolerable. Bevel gear system consist of crossing shafts and cone-style that thrust flexible movement in the part directly amid these shafts. They can manage a considerable amount of pressure due to the feature axes and how they are fitted with care. Bevel gear systems have lesser effectiveness levels than spur and helical transmission boxes. 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 little load capability due to the similar pose of their teeth. Helical gear teeth positioning permits for self-effacing engagement thus guarantee a work that is considerably softer than that of spur gear systems. 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 transmission boxes are adjustment of bevel gear system, and they give benefits equal to helical gearbox systems with teeth that join bit by bit. Due to slowly engagement of the gear system, the process results in smoother and a reduced amount of noisy gear shafts. The effectiveness level of the spiral systems is very high. Hypoid gearboxes look a lot like spiral bevel type but their compel axes do not touch. They work fine with right angle compel shaft, they produce minimum sound, and they are powerful than spiral bevel gear systems. High speed ratio can be managed with this system.