Purpose of a manual gearbox

Today in this article lets know about them in depth. What is gearbox? Why do we need them? A gearbox or a transmission system in an automobile is a machine which uses multiple gears, shafts and actuating parts to transmit power from engine to the wheels. Clutch shaft OR driving shaft is a shaft which takes power from engine to further supply to other shafts.

The clutch shaft has only one gear fixed on it and it rotates with same speed as engine crankshaft. Also, the driving shaft and main shaft are in the same line. Counter shaft is longest among the 3 in the gearbox. It has multiple gears of various sizes which is able to produce a wide range of torque. The counter shaft rotates at a different but constant speed just like the clutch shaft. The main shaft OR output shaft is which rotates at different speed and also provides the required torque to the vehicle.

The output shaft is a splined shaft so that gears or synchronizers could be moved in order to engage or disengage. The neutral gear is the position in which no gear on output shaft is engaged with counter shaft.

Gears are used to transmit power from one shaft to another. The amount of torque transmitted via gears depend on the number of teeth and size of the gear. Because the countershaft and output shaft turn at different speeds, moving from 1 st to 2 nd gear, trying to engage a higher gear while the vehicle is moving slower would be like trying to turn the shaft at two different speeds, which is impossible.

Synchronizer rings are like tiny clutches, using friction to bring the locking collar and the gear to the same speed, at which point they easily mesh and power can be reapplied. In comparison to an automatic transmission , a manual transmission is simple in operation and maintenance, and they are known to last hundreds of thousands of miles.

Really, the only thing a manual transmission needs is an occasional gear oil change — usually every 30, to 60, miles, depending on conditions and driver habit. If you drive a work truck, race car, or are just an aggressive driver, you might need to replace manual transmission gear oil as often as every 15, miles.

Driving responsibly is the single best way to help your clutch and manual transmission last. When you have your foot on the clutch, it wears on the clutch release fingers and the throwout bearing. When decelerating, fully engage and disengage the clutch to downshift. Riding the clutch just heats it up and wears it out. To help your clutch last even longer, learn to rev-match while downshifting.

This takes practice, but increasing engine speed slightly while engaging the clutch in the lower gear reduces shift shock through the whole powertrain, and everything from bushings to clutch and driveline will last longer. Louis area. Put our experience to work for you. The amount of torque that a gearbox puts out and the number of revolutions per minute that it reduces are both directly related to the efficiency of the gearbox.

Gear boxes have several stages in them and the amount of stages changes the efficiency of the box. The more gear stages that are present in a gearbox, the greater the efficiency will be. When there are fewer, the efficiency will be reduced and the gearbox will not put out as much torque.