There are single-stage ratio: 10:1, 20:1, 30:1, 40:1, 50:1, 60:1 specific models and installation dimensions table below: axis points, according to the angle of view screws : A: one into the left into the top of the (conventional point) B: one into one, the left into the C: one into two, the left and out into the front, two shaft Type D: 2 into 2, around, into the E-type: two into one, into the top of the left and right. WPA: W turbine reducer P: P overall box structure D split A: A-mounted access shaft into the shaft into the shaft in the next S-O-out on the X-axis of the axial axis into the next T- No code into the V-axial down - universal type Chinese name: English name reducer: speed reducer Other names: reducer; gear box Definition: used to reduce the speed, power transmission, increased torque transmission components independently. Reducer between the prime mover and the executive body of work or play the role of matching the speed and torque delivery in modern machinery wide range of applications. Retarder use can be divided into general and special reducer reducer two categories, both the design, manufacture and use of features varies. 1970s and 1980s, the world reducer technology has been greatly developed and closely integrated with the development of new technological revolution. Meaning closed reducer is an independent transmission between the prime mover and a working machine, used to reduce speed and increase torque to satisfy the work requirements, the growth rate is also used in some cases, called accelerator. Reducer should be chosen according to the conditions of the working machine selection, technical parameters, power machine performance, economy and other factors, comparison of different types, varieties outside dimensions reducer, transmission efficiency, carrying capacity, quality, price, etc., to choose the most suitable reducer. Reducer effect is a relatively sophisticated machinery, its purpose is to reduce the use of the rotational speed, large torque. Meaning closed reducer is an independent transmission between the prime mover and a working machine, used to reduce speed and increase torque to satisfy the work requirements, the growth rate is also used in some cases, called accelerator. Reducer should be chosen according to the conditions of the working machine selection, technical parameters, power machine performance, economy and other factors, comparison of different types, varieties outside dimensions reducer, transmission efficiency, carrying capacity, quality, price, etc., to choose the most suitable reducer. Reducer classification category, variety, type a lot, has developed a row (country) there are more than 40 species subject reducer. Reducer categories are based on those used in the gear tooth, the tooth profile is divided; reducer reducer variety is designed based on the need to use different structures; reducer type is based on the basic structure of the tooth surface according to different characteristics of hardness reducer, drive series, shaft type, assembly type, installation type, connection type and other factors and design. Classification and reducer coupling load work load state machine is more complex, a great impact on reducer, reducer selection and calculation is an important factor in the state that the work load reducer machine (from motivation) load condition, usually divided into three categories: ① - uniform load; ② - moderate impact load; ③ - strong shock loads. Properly install the correct installation, use and maintenance of the gear unit, is to ensure the normal operation of machinery and equipment important part. Therefore, when you install a reducer, be sure to follow the instructions below to install and use related matters, carefully assembled and used. The first step is to confirm before installing the motor and gear is intact, and strictly check each part size motor and reducer connected to match, here is the positioning of the motor boss, the input shaft and reducer such as size and fit the groove tolerances. The second step is to unscrew the screw hole reducer flange dust on the outside, so that the side to adjust the clamping ring bore holes are aligned with the dust, tighten the hex insert. After removal of the motor shaft key. The third step is to connect the motor and reducer nature. Must ensure that the connection is consistent with the output shaft of the motor reducer input shaft concentricity and two lateral flanges are parallel. As the heart of the inconsistency will lead to the motor shaft gear reducer broken or worn.