The custom universal joints is usually installed between the transmission and the drive axle. The universal joint is a device that transmits power. Its function is to connect the transmission output shaft and the final drive input shaft that are not on the same line, and ensure that the transmission between the two shafts In the case of frequent changes in the angle and distance, the power can still be transmitted reliably. The universal joint device is generally composed of a universal joint, a transmission shaft and an intermediate support. The universal joint is mainly composed of a universal joint fork, a cross shaft and a bearing sleeve, and some have a grease nipple. In some cars, the bearings are not locked by the bearing cover, but by the snap ring. The front front drive engine also has universal joints on the half shafts, which can be roughly divided into two types: ball cage and triaxial.When the drive shaft is installed, the universal joint forks at both ends must be in the same plane. That's because although the working characteristics of ordinary cross-shaft universal joints can adapt to the change of the angle between the driving and driven shafts, this kind of universal joint has unequal speed characteristics, that is, when the driving shaft rotates at a constant speed, the speed of the driven shaft It changes periodically from time to time. This unequal speed will cause an impact on the driven axle gear. The impact will not only make noise, but also accelerate the damage of the driven axle gear.The middle support is composed of rubber elastic elements, bearings, etc. Because the honeycomb rubber pad is elastic, 5-280X PRECISION 334 universal joint can compensate for installation errors and displacement caused by engine movement and frame deformation during driving.