1. After a sound testing equipment, products quality are reliable
2. Universal joint that is universal joints, is to achieve variable angle power transmission of the parts, for the need to change the direction of the drive shaft position, it is the car drive system universal gear "joint" components.
3. Universal joint and drive shaft combination, known as universal joint drive. The structure and function of the universal joint is somewhat like the joint on the body limbs, which allows the angle between the connected parts to vary within a certain range.
4. To meet the power transmission, to adapt to the steering and the car running when the upper and lower beats caused by the angle of change, the front drive the car's axle, axle and axle between the commonly used universal joint connected.
5. However, due to the axial size limit, the requirements of the declination is relatively large, a single universal joint can not make the output shaft and shaft into the shaft instantaneous angular velocity equal to, likely to cause vibration, exacerbate the damage, Noise, so widely used in a wide range of constant velocity universal joint.