What does the first, second, and third shaft of a car mean?
1 Answers
1. First shaft: In the automotive field, the first shaft is also called the "input shaft." It is a shaft located in the gearbox (transmission) and connected to the clutch. Its function is to transmit the power from the car engine into the gearbox through the control of the clutch. 2. Second shaft: The second shaft is also called the output shaft. It is a shaft in the car's gearbox, directly connected to the drive shaft (propeller shaft), transmitting torque and rotational speed, which then drives the car through the differential. In four-wheel-drive vehicles, the second shaft is connected to the transfer case. 3. Third shaft: The third shaft refers to three axles, etc. Multiple drive shafts are used to transmit driving force from the engine to the drive wheels. Here, the shaft simply refers to the connecting bridge between the wheels on both sides, known as the axle. A two-shaft transmission is suitable for FF (front-engine, front-wheel-drive) layouts, while a three-shaft transmission is suitable for FR (front-engine, rear-wheel-drive) layouts. Additional information: 1. Manual transmission: