A car gearbox (or transmission) transfers rotational power from the engine to the wheels while adjusting speed and torque to match driving conditions.
Main Functions of a Gearbox
Torque Multiplication: Provides high torque (turning power) in lower gears to help the car start moving from a complete stop, climb steep hills, or pull heavy loads.
• Speed Regulation: Allows the engine to run safely within its ideal RPM (revolutions per minute) range while the car travels at various slow or high speeds.
• Power Transfer: Delivers continuous mechanical power from the engine's crankshaft through the input shaft to the output shaft and wheels.
• Direction Reversal: Uses a reverse gear (or idler gear setup) to turn the wheels backward so the car can back up.
• Neutral Disengagement: Provides a neutral