What is the universal transmission device generally composed of?

[OZane]

The universal transmission device is generally composed of universal joints, drive shafts, and intermediate supports. There are many universal transmission devices in automobiles. Universal transmission devices can be found everywhere in cars, such as the steering column under the steering wheel, the half-shafts of the wheels, the drive shafts of rear-wheel-drive or four-wheel-drive vehicles, etc., all of which belong to universal transmission devices. The installation precautions for drive shafts are as follows: 1. The two universal joint yokes at both ends of the drive shaft should be in the same plane to ensure constant velocity transmission; 2. The slip joint should be installed close to the transmission or transfer case to minimize the vibration of the slip joint, thereby reducing wear on the slip joint and increasing its ground clearance; 3. Pay attention to aligning the balance marks, and all parts should be installed in their original positions; 4. The grease fittings on each drive shaft should be in a straight line, and the grease fittings on the universal joint cross should face the drive shaft side for easy lubrication; 5. The locks of the two clamps on the dust cover of the drive shaft slip joint should be installed in radially opposite positions, 180 degrees apart.