Transmission is fixed or binning can change gear transmission output shaft and the input shaft of the transmission ratio, also known as the gearbox. Transmission by the drive mechanism and the transmission mechanism composed of transmission mechanism can be made separately or together with the actuator mounted in the same casing. Most ordinary transmission gear, and some planetary gear drive. Ordinary gear shift mechanism for general use such as sliding gears and synchronizers. How associated gear slip slip slip displacement gear and gear points. With triple sliding gear shift, a large axial dimension; with displacement sliding gear transmission, compact structure, but smaller than the gear change. Synchronization has intermeshing and friction points. By mating-type synchronizer, the shift should stop or speed difference is very hour; with friction gear synchronizer can be in operation at any speed difference, but small carrying capacity, and can not guarantee strict two-axis synchronization. To overcome this drawback, the engagement-type synchronizer installed on the friction plate, the shift of the first friction plate by the driven wheel to the synchronous speed and then carry out the engagement. Planetary gear transmission brake control gear available. Transmission widely used machine tools, vehicles and other machinery required shift. Spindle often installed in the transmission, so called headstock, compact structure, easy centralized operation. On the machine for changing the feed amount of the transmission is called feed box. Changzhou SUV accessories, car accessories Hongyang, Menghe vehicle accessories www.czshongyang.com