The bearings of transmission parts shall be domestic well-known brands or imported bearings, and the seals shall be skeleton oil seals; Sound absorption box structure, large box surface area and large fan; The temperature rise and noise of the whole machine are reduced, the reliability of operation is improved, and the transmission power is increased. It can realize parallel axis, straight axis, vertical and horizontal universal box, and the input mode includes motor connecting flange and shaft input; The output shaft can be output at right angles or horizontally, with solid shaft, hollow shaft and flanged output shaft. Make the gearbox meet the installation requirements of narrow space, and can also be supplied according to customer requirements.