Working conditions 1. Smooth transmission, small vibration, impact and noise, large reduction ratio, wide versatility, and can be used with various mechanical equipment. 2. It can obtain a large transmission ratio with single-stage transmission, compact structure, most models of reducer have good self-locking, and can save braking devices for mechanical equipment with braking requirements. 3. The meshing friction loss between the worm screw and the worm wheel tooth surface is large, so the transmission efficiency is lower than that of the gear, and it is easy to generate heat and high temperature. 4, the lubrication and cooling requirements are higher. 5, good compatibility, worm gear are manufactured according to national standards, bearings, oil seals and other standard parts. 6. The box type includes basic type (the box is vertical or horizontal structure with foot plate) and universal type (the box is cuboid, with fixed screw holes on many sides, without foot plate or other foot plate and other structure types) 7. There are two types of input shaft connection: basic type (single input shaft and double input shaft) and motor flange. 8. The position direction of the output and input shaft has the input shaft below and above; the output shaft is up and down; the input shaft is up and down. 9.2 or 3 reducers can be used to form a multi-stage reducer to obtain a great transmission ratio.