Drivetrain

A transmission or gearbox provides speed and torque conversions from a rotating power source to another device using gear ratios, including for a motor vehicle partly because of the limitations of internal combustion engines.Usually found near motors of some sort, gearboxes are used to reduce the load on the motor by using the motor's own momentum to keep it turning.

71p thanhgiang094 10-05-2011 126 41   Download