Gear Box and its Components

Gear box, also known as transmission box, is the second element in the power train in an automobile. It is basically used to change the torque and speed of the vehicle according to the variety of load and road conditions. It changes the engine speed into torque when climbing hills and when the vehicle required and that’s why it is known as torque converter. Basically, the gear box is the one that provides torque needed to move the vehicle by changing the gear ration between engine crankshaft and vehicle drive wheels. It includes variety of components but transmission gears ad shafts are the important one.

Components of Gear Box:

The main components of gear box are:

·         Bearings

Bearings are required to support the revolving part and reduce the friction. In the gear box, both main shaft and counter are supported by the bearing.

·         Transmission gears and shafts

Transmission gears and shafts are used to transmit power from one shaft to another. This is the most useful component because the variation of torque of counter shaft and main shaft depends on the gear ratio. The gear ratio is the ratio of the driven gear teeth to the driving gear teeth.

·         Main Shaft

Main shaft carries the power for the counter shaft by the use of gears and according to the gear ratio, it runs at the different speed and torque compares to the counter shaft.

·         Counter shaft

It is the shaft which connects with the clutch shaft directly. It comprises the gear which connects it to the clutch shaft as well as main shaft.