Tag Archives: speed reducer for electric motor

China XWD XLD BLD BWY Cyclo Cycloidal Pinwheel gearbox Gear Speed Reducer with electric motor for mixer supplier

Warranty: 1 calendar year
Relevant Industries: Production Plant, Food & Beverage Manufacturing unit, Building works , Power & Mining, Other, Cyclo Cycloidal Pinwheel gearbox Gear Speed Minimize
Tailored assistance: OEM, ODM, Cyclo Cycloidal Pinwheel gearbox Gear Velocity Lessen
Gearing Arrangement: Cycloidal
Output Torque: 375~519520Nm(custom-made)
Enter Velocity: 6MM equipment bearings this sort of as raise ,transportation,mine,metallurgy,petrolchemical,texitile,prention,lightindustry,pharmacy,foods,forage,foods machinery,ect.

Attribute:

  • one. Massive Volecity- Minimizing Ratio:Ratio of single-stage pace-decreasing is 1/eleven-1/87 Ratio of double phase pace-minimizing is 1/112-1/5133Ratio of three-phase velocity-minimizing is 1/2057-1/446571more-stages can be mixed according to the necessity.
  • two. High driving efficiency:Due to adopting rolling engagement in slipping-in part, the driving performance can attain previously mentioned ninety%.
  • 3. Small in measurement, light excess weight: with compacted composition,little size and gentle weight. Because of to adopting the theory of world driving so that the enter and output shaft in the same axis which will built-in with the motor.
  • 4. Prolonged services lifestyle: Has excellent resistance to abrasion simply because the major driving engaging parts are made of bearing steel and applying rolling friction.
  • 5. Steady working: for most driving procedure, we adopt multi-teeth falling-in. Then the running will be stable with low noise.
  • six. Hassle-free dismounting:realistic composition and style.
  • seven. Sturdy overloading ability,anti-compact,ideal for usually start and double-facet rotation.

  • Specification BWD XWD Collection:
    (please get in touch with us for far more sorts & model)
    Mounting Diamensions

    Model assortment:
    Intently using the ideal reduction ratio.
    Reduction ratio = servo motor velocity / reducer output shaft pace
    Torque calculation: Torque calculation is very critical for the existence of reducer, and pay out attention to whether or not the highest torque price (TP) of acceleration exceeds the optimum load torque of the reducer.
    The relevant power is usually the relevant power of the servo designs on the market place, the applicability of the reducer is quite high, the working coefficient can be managed previously mentioned 1.2, but the selection can also be primarily based on their own wants to choose.XWD XLD BLD BWY Cyclo Cycloidal Pinwheel gearbox Equipment Velocity Reducer with electrical motor for mixer.

    Driven devices
    Squander water remedyThickeners,filter presses,flocculation apparata,aerators,raking gear,mixed longitudinal and rotary rakes,pre-thickeners,screw pumps,drinking water turbines,centrifugal pumpsDredgersBucket conveyors, dumping gadgets, carterpillar travelling gears, bucket wheel excavators as decide up, bucket wheel excavator for primitive material, cutter head, Custom 38 3mm 8mm Metal Aluminum Break up Set Screw Clamp Lock Threaded Shaft Collar traversing gears
    Chemical marketPlate bending machines, extruders, dough mills, rubbers calenders, cooling drums, mixers for uniform media, agitators for media with uniform density, toasters, centrifugesSteel doing work millsplate tilters, ingot pushers, winding devices, cooling bed transfer frames, roller straigheners, desk continuous intermittent, roller tables reversing tube mills, shears continuous, casting motorists, reversing CZPT mills
    Metal doing work millsReversing slabbing mills. reversing wire mills, reversing sheet mills, reversing plate mill, roll adjustment drivesConveyorsBucket conveyors, hauling winches, hoists, belt conveyors, very good lifts, passenger lifts, apron conveyors, escalators, rail travlling gears
    Frequency convertersReciprocating compressors
    CranesSlewing gears, luffing gears, travelling gears, hoisting gear, derricking jib cranesCooling towersCooling tower enthusiasts, blowers axial and radial
    Cane sugar manufacturingCane knives, cane millsBeet sugar productionBeet cossettes macerators, extraction vegetation, mechanical fridges, juice boilers, sugar beet washing devices, sugar beet cutter
    Paper devicesPulper drivesCablewaysMaterial ropeways, ongoing ropeway
    Cement businessConcrete mixer, Pump Bearing Price tag Listing Deep Groove Ball Bearing 6316 breaker, rotary kilns, tube mills, separators, roll crushers
    Engineering

    Reducer is a mechanical transmission in several fields of the national economic system. The solution types covered by the industry consist of all varieties of gear reducer, planetary equipment reducer and worm reducer, as well as different particular transmission products this sort of as speed growing gadget, velocity manage Devices, including different types of versatile transmission units, this sort of as compound transmission. Products and providers in the discipline of metallurgy, nonferrous metals, coal, developing resources, ships, water conservancy, electrical energy, development equipment and petrochemical industries.

    Chinese gearbox sector has a heritage of virtually 40 years. In all fields of countrywide financial system and national defense industry, gearbox products have a broad variety of purposes. Food gentle market, electric machinery, construction machinery, metallurgy machinery, cement machinery, environmental safety equipment, digital appliances, road construction machinery, h2o conservancy machinery, chemical equipment, mining equipment, conveyor machinery, building supplies equipment, rubber machinery, petroleum machinery and other industries have powerful desire of Reducer goods.XWD XLD BLD BWY Cyclo Cycloidal Pinwheel gearbox Gear Speed Reducer with electric powered motor for mixer.

    Packaging & Transport
    Company Information Started in 1995, HangZhou Boji Power machinery Co.,Ltd has 22 a long time of reducer production expertise and credibility. The business has professional engineer staff, innovative technology generation and competent staff, with situated in HangZhou of ZheJiang province which has strong industrial foundation and designed transportation.

    FAQ 1.Q:Are you the manufacturing facility or trading organization?
    A:We are the professional Manufacturing facility with 22 a long time of experience.

    two.Q:Can you customise in accordance to our requirements?
    A:Of course, we can style nonstandard merchandise according to customer’s drawing and sample.

    three.Q:How long is the shipping day?
    A:10-twenty working days.

    4.Q:In which is your factory?
    A:We are in HangZhou of ZheJiang Province, you can get listed here by substantial pace practice or fly to HangZhou.
    Welcome to visit us!

    How to Select a Gearbox

    When you drive your vehicle, the gearbox provides you with traction and speed. The lower gear provides the most traction, while the higher gear has the most speed. Selecting the right gear for your driving conditions will help you maximize both. The right gearing will vary based on road conditions, load, and speed. Short gearing will accelerate you more quickly, while tall gearing will increase top speed. However, you should understand how to use the gearbox before driving.
    gearbox

    Function

    The function of the gearbox is to transmit rotational energy to the machine’s drive train. The ratio between input and output torque is the ratio of the torque to the speed of rotation. Gearboxes have many different functions. A gearbox may have multiple functions or one function that is used to drive several other machines. If one gear is not turning, the other will be able to turn the gearbox. This is where the gearbox gets its name.
    The pitch-controlled system has an equal number of failure modes as the electrical system, accounting for a large proportion of the longest machine downtime and halt time. The relationship between mechanisms and faults is not easily modeled mathematically. Failure modes of gearboxes are shown in Fig. 3. A gearbox’s true service life is six to eight years. However, a gearbox’s fault detection process must be developed as mature technology is required to reduce the downtime and avoid catastrophic incidents.
    A gearbox is a vital piece of machinery. It processes energy produced by an engine to move the machine’s parts. A gearbox’s efficiency depends on how efficiently it transfers energy. The higher the ratio, the more torque is transferred to the wheels. It is a common component of bicycles, cars, and a variety of other devices. Its four major functions include:
    In addition to ensuring gearbox reliability, a gearbox’s maintainability should be evaluated in the design phase. Maintainability considerations should be integrated into the gearbox design, such as the type of spare parts available. An appropriate maintenance regime will also determine how often to replace or repair specific parts. A proper maintenance procedure will also ensure that the gearbox is accessible. Whether it is easy to access or difficult to reach, accessibility is essential.

    Purpose

    A car’s transmission connects the engine to the wheels, allowing a higher-speed crankshaft to provide leverage. High-torque engines are necessary for the vehicle’s starting, acceleration, and meeting road resistance. The gearbox reduces the engine’s speed and provides torque variations at the wheels. The transmission also provides reversing power, making it possible to move the vehicle backwards and forwards.
    Gears transmit power from one shaft to another. The size of the gears and number of teeth determine the amount of torque the unit can transmit. A higher gear ratio means more torque, but slower speed. The gearbox’s lever moves the engaging part on the shaft. The lever also slides the gears and synchronizers into place. If the lever slips to the left or right, the engine operates in second gear.
    Gearboxes need to be closely monitored to reduce the likelihood of premature failure. Various tests are available to detect defective gear teeth and increase machine reliability. Figure 1.11(a) and (b) show a gearbox with 18 teeth and a 1.5:1 transmission ratio. The input shaft is connected to a sheave and drives a “V” belt. This transmission ratio allows the gearbox to reduce the speed of the motor, while increasing torque and reducing output speed.
    When it comes to speed reduction, gear box is the most common method for reducing motor torque. The torque output is directly proportional to the volume of the motor. A small gearbox, for example, can produce as much torque as a large motor with the same output speed. The same holds true for the reverse. There are hybrid drives and in-line gearboxes. Regardless of the type, knowing about the functions of a gearbox will make it easier to choose the right one for your specific application.
    gearbox

    Application

    When selecting a gearbox, the service factor must be considered. Service factor is the difference between the actual capacity of the gearbox and the value required by the application. Additional requirements for the gearbox may result in premature seal wear or overheating. The service factor should be as low as possible, as it could be the difference between the lifetime of the gearbox and its failure. In some cases, a gearbox’s service factor can be as high as 1.4, which is sufficient for most industrial applications.
    China dominates the renewable energy industry, with the largest installed capacity of 1000 gigawatts and more than 2000 terawatt hours of electricity generated each year. The growth in these sectors is expected to increase the demand for gearboxes. For example, in China, wind and hydropower energy production are the major components of wind and solar power plants. The increased installation capacity indicates increased use of gearboxes for these industries. A gearbox that is not suitable for its application will not be functional, which may be detrimental to the production of products in the country.
    A gearbox can be mounted in one of four different positions. The first three positions are concentric, parallel, or right angle, and the fourth position is shaft mount. A shaft mount gearbox is typically used in applications where the motor can’t be mounted via a foot. These positions are discussed in more detail below. Choosing the correct gearbox is essential in your business, but remember that a well-designed gearbox will help your bottom line.
    The service factor of a gearbox is dependent on the type of load. A high shock load, for example, can cause premature failure of the gear teeth or shaft bearings. In such cases, a higher service factor is required. In other cases, a gearbox that is designed for high shock loads can withstand such loads without deteriorating its performance. Moreover, it will also reduce the cost of maintaining the gearbox over time.

    Material

    When choosing the material for your gearbox, you must balance the strength, durability, and cost of the design. This article will discuss the different types of materials and their respective applications and power transmission calculations. A variety of alloys are available, each of which offers its own advantages, including improved hardness and wear resistance. The following are some of the common alloys used in gears. The advantage of alloys is their competitive pricing. A gear made from one of these materials is usually stronger than its counterparts.
    The carbon content of SPCC prevents the material from hardening like SS. However, thin sheets made from SPCC are often used for gears with lower strength. Because of the low carbon content, SPCC’s surface doesn’t harden as quickly as SS gears do, so soft nitriding is needed to provide hardness. However, if you want a gear that won’t rust, then you should consider SS or FCD.
    In addition to cars, gearboxes are also used in the aerospace industry. They are used in space travel and are used in airplane engines. In agriculture, they are used in irrigation, pest and insect control machinery, and plowing machines. They are also used in construction equipment like cranes, bulldozers, and tractors. Gearboxes are also used in the food processing industry, including conveyor systems, kilns, and packaging machinery.
    The teeth of the gears in your gearbox are important when it comes to performance. A properly meshing gear will allow the gears to achieve peak performance and withstand torque. Gear teeth are like tiny levers, and effective meshing reduces stress and slippage. A stationary parametric analysis will help you determine the quality of meshing throughout the gearing cycle. This method is often the most accurate way to determine whether your gears are meshing well.
    gearbox

    Manufacturing

    The global gear market is divided into five key regions, namely, North America, Europe, Asia Pacific, and Latin America. Among these regions, Asia Pacific is expected to generate the largest GDP, owing to rapidly growing energy demand and investments in industrial infrastructure. This region is also home to some of the largest manufacturing bases, and its continuous building of new buildings and homes will support the industry’s growth. In terms of application, gearboxes are used in construction, agricultural machinery, and transportation.
    The Industrial Gearbox market is anticipated to expand during the next several years, driven by the rapid growth of the construction industry and business advancements. However, there are several challenges that hamper the growth of the industry. These include the high cost of operations and maintenance of gear units. This report covers the market size of industrial gearboxes globally, as well as their manufacturing technologies. It also includes manufacturer data for the period of 2020-2024. The report also features a discussion of market drivers and restraints.
    Global health crisis and decreasing seaborne commerce have moderately adverse effects on the industry. Falling seaborne commerce has created a barrier to investment. The value of international crude oil is expected to cross USD 0 by April 2020, putting an end to new assets development and exploitation. In such a scenario, the global gearbox market will face many challenges. However, the opportunities are huge. So, the market for industrial gearboxes is expected to grow by more than 6% by 2020, thanks to the increasing number of light vehicles sold in the country.
    The main shaft of a gearbox, also known as the output shaft, spins at different speeds and transfers torque to an automobile. The output shaft is splined so that a coupler and gear can be connected to it. The counter shaft and primary shaft are supported by bearings, which reduce friction in the spinning element. Another important part of a gearbox is the gears, which vary in tooth count. The number of teeth determines how much torque a gear can transfer. In addition, the gears can glide in any position.

    China XWD XLD BLD BWY Cyclo Cycloidal Pinwheel gearbox Gear Speed Reducer with electric motor for mixer     supplier China XWD XLD BLD BWY Cyclo Cycloidal Pinwheel gearbox Gear Speed Reducer with electric motor for mixer     supplier
    editor by czh 2023-02-17

    China New design Induction 1000w Ac Gearbox China Speed Reducer For Electric Motor 135kw with high quality automatic gearbox

    Warranty: 1 calendar year, 1 Yr
    Applicable Industries: Producing Plant, Equipment Repair Retailers, Farms, Vitality & Mining
    Bodyweight (KG): 50 KG
    Customized assist: OEM, ODM, OBM
    Gearing Arrangement: Helical / Cycloidal
    Output Torque: top to 37000NM
    Enter Pace: 500/750/1000/1500/3000rpm
    Output Speed: .5-2000rpm
    Product identify: CZPT transmission gearbox/ reducer for one extruder
    Mounting Placement: Horizontal (foot Mounted)
    Coloration: Blue/ As your ask for
    Application: Equipment Resource
    Material: Forged Iron
    Variety: CZPT sequence plastic extruder gearbox
    Certificate: ISO9001
    Product: ZLYJ112/133/146/173/two hundred/225/250/280/315/330/375/420/450/560/630
    Ratio: 8/ten/twelve.5/fourteen/16/eighteen/20
    Packaging Details: Modest size: common export packing (carton and pallet) Scorching Sale 1KW 220v 3000rpm AC servo motor with driver
    Big dimension: fumigated wooden carton or non-wood packing material carton
    Port: ZheJiang or HangZhou

    Specification CZPT series speed reducer is substantial precision challenging teeth surfac transmission part with push stand designed for plastic screw extruder. The design of item adapts all specialized restrictions stipulated in JB/T9571-1999It function that gear and areas of haltare made from large toughness alloy metal. The gear is manufactured by way of various processing systems these kinds of as carburizing, quench.ing, tooth grinding, etc. The accuracy of equipment is the quality of GB10095-88.6. The hardness of teeth floor reaches HRC54-sixty two. AT the front conclude of hollow output shaft, t is equipped with tremendous thrust bean earing.o seal and so on, adapt domestic quali.ing to withstand the operating recoil. The primary regular parts, this kind of as fed products. As ask for. t can also be geared up with importedproducts. It festures compact, OEM Tailored CNC machining aluminum turning fittings Stainless metal machining areas large recognized capacity. steady transmission, reduced sound, substantial effectiveness, and so on. The residence of item sreached global advanced amount and can replace the exact same imported goods.The specification and transmission ratio in the series products arecommon date of customers. When deciding on, consumers can com-pareactual transmission torque of screw with the permitted output torque detailed in desk 2. (the torque in the desk has deemed functioning condion co-productive and safe co-productive, it might bechosen in 1: 1directly )and might choose with the output torque asbase. If it need to have to be geared up with rubber extruder, the rubber extruder has much better impact pressure than plastic extruder. Make sure you supply detailded specialized parameters and seek advice from the create-ment section of our business and then determine the model to be selected

    Specification
    TypeZLYJ sequence plastic extruder gearbox
    Material Cast Iron
    ColorAs your ask for
    ModelZLYJ112/133/146/173/200/225/250/280/315/330/375/420/450/560/630
    Input velocity1500/1200/1000/750/600
    Ratio8/ten/12.5/14/sixteen/18/20
    Screw diameter35/forty five/fifty/fifty five/sixty five/seventy five/90/a hundred/one hundred and five/110/one hundred twenty/a hundred thirty/150/a hundred and sixty/165
    Spare partcoller, 8000 collection cycloidal equipment box velocity reducer equipment variator transmission electric worm equipment screw jack value oil pump
    Related product Firm Introduction Packing & Shipping

    The Different Types of Gearboxes

    There are many different types of gearboxes. Some brands have more than one type. In this article, we’ll discuss the planetary gearbox, the worm reduction gearbox, the shaft mounted gearbox, and the one speed gearbox. This article will also help you determine which type of gearbox is best for your vehicle. And don’t worry if you don’t know the terminology yet. We’ll explain each type in detail so that you know what you’re getting yourself into.
    gearbox

    Planetary gearbox

    Planetary gears have many advantages. The multiple gears in a planetary gearbox mesh simultaneously during operation. As such, they provide high efficiency and transmit high transmittable torque. These gears are widely used in various industries and are resistant to high shock loads and demanding conditions. CZPT is one of the companies that offer planetary gearboxes. Its products do not require special tools for assembly, and its scalable design minimizes safety stock.
    Among the numerous benefits of planetary gearing is its compactness and lightweight. As such, it is suitable for wide applications with space and weight constraints. However, to truly appreciate its benefits, it is necessary to understand its mechanisms. Here are some of the most common details about planetary gearing:
    The planetary gearbox has two mounted gears: an input shaft and an output shaft. Each gear has multiple teeth that are attached to a carrier and rotate with the input shaft. The carrier is connected to the output shaft. A planetary gear is mounted on both gears via a carrier. The carrier rotates in order to drive the planetary gear. The sun gear is often the input gear. The other gear is called the outer gear.
    Planetary gearboxes are highly customizable. The size, mounting, and housing options vary, as do the reduction ratios and input speeds. Different types can be manufactured for different applications and include options such as electrical or mechanical preload. The final design of a planetary gearbox can be highly customized, based on the specifications of the application. By combining engineering excellence and ongoing innovation, planetary gearboxes provide years of trouble-free operation.
    A planetary gearbox can be either an electric motor or a manual one. The latter has more features than the former, and can be used in applications where space is an issue. The primary features of a planetary gearbox include its backlash, torque, and ratio. Secondary features include noise, corrosion resistance, and construction. A planetary gearbox is a highly versatile gearbox that can drive anything from simple machinery to advanced electrical systems.
    gearbox

    Worm reduction gearbox

    The global worm reduction gearbox market report compiles key insights from the industry to help you improve your business strategy. This report will help you create a comprehensive business document that will enhance your company’s competitive edge. To obtain this report, visit our website now! Read our latest report to find out what you can expect from the global worm reduction gearbox market. Alternatively, request a sample copy for more details. Here is a sneak peek of the report:
    Worm gears are made with different thread counts and are usually not matched with the CZPT standard. In general, a single thread worm should be used with a single thread worm. Worm gears have either right or left threads, and their thread count will be different as well. This type of gear is used to reduce the speed of a rotating shaft. The speed reduction ratio will be about 50 percent if the worms have the same thread count as the CZPT gears.
    The standard gear set transfers power at the peak load point of a tooth, called the pitchline. The worm gear moves slowly against the wheel’s metal surface. The worm gear is also more complex than the standard gear because the worm is sliding rather than rolling. Worm gears are hard to lubricate. Moreover, the sliding contact between the gear and worm increases the complexity of the gear set. They can be a great solution for applications where noise is a significant factor.
    The axial pitch and circular pitch of the worm are equal. The ratio of these two indices determines the speed of transmission. For a worm reduction gearbox to work, the axial pitch and the circular pitch must match. The pitch angle of a worm can either be left-handed or right-handed. The lead of a worm is the distance one thread travels in one revolution. The lead angle is the angle tangent to the thread helix of the cylinder’s pitch. When a worm mesh is reversed, the majority of the mesh will be on the receding arc.
    Worm gears generate more heat than their counterparts, so it is important to choose a worm reduction gearbox carefully. You will want to choose the material and amount of lubricating oil carefully. Worm gears are generally made of tin bronze. The paired worms are hardened to HRC45-55. In general, they are durable, lasting up to ten years. But they will wear out – and they wear out – so you may want to consider some other factors.

    Shaft-mounted gearbox

    Shaft-mounted gearboxes are designed for a variety of mining and quarry applications. Their high reliability and low maintenance make them an excellent choice in these types of applications. Shaft-mounted gearboxes also feature an optional backstop device that prevents the unit from rotating in one direction. This makes them an excellent choice for applications where alignment accuracy is an issue. Here are some of the benefits of using a shaft-mounted gearbox:
    Shaft-mounted gearboxes are typically constructed of aluminium, and come in sizes ranging from 050 to 125. They feature a variety of reduction ratios and ensure optimum efficiency in all operating conditions. New S series sizes, 140 and 150, extend the application range of shaft-mounted gearmotors. They are both backed by a two-year warranty. For even greater peace of mind, Shaft-mounted gearboxes are available with a range of warranty options.
    The most common applications for a Shaft-mounted gearbox include traction-driven applications where a low-speed shaft is required for operation. They also are suitable for applications without a foundation, where the motor is mounted next to the reducer. To prevent the gear drive from rotating, a torque arm is attached between the motor and the shaft. Small-sized shaft-mounted gear drives are usually made without motor mount kits, which can make them an excellent choice for conveying light loads.
    Another important feature of a Shaft-mounted gearbox is its mounting position. The reduced motion through the drive is redirected through the shaft, creating additional forces. These additional forces can affect the performance of the gearbox, causing vibrations and noise. Consequently, it is important to replace worn or damaged belts on a regular basis. Further, shaft-mounted gearboxes can be affected by problems with other components and amplify vibrations.
    gearbox

    1 speed gearbox

    CZPT Group Components produces one speed gearboxes. These transmissions are produced in the CZPT Group’s Kassel plant. They are compact and robust, and are designed for easy integration. The Bosch Rexroth GD1 one-speed gearbox is easy to install horizontally or vertically. The Plug and Drive system integrates the gearbox with the existing cooling system. There are many other benefits to this gearbox.
    With an ID.3 electric drive motor, the maximum torque is delivered at 16,000 rpm. This single-speed transmission offers high power density and excellent noise-reduction, making it ideal for electric vehicles. The e-drive motor is extremely quiet and requires precision manufacturing. The e-drive motor also enables a wide range of driving conditions. It can reverse when needed, and reaches its maximum speed at 16,000.
    The single-speed gearbox is a standard feature on most electric vehicles. Some electric vehicles, such as the Porsche Taycan, will be equipped with a two-speed gearbox. This gearbox offers more top speed and range, but it is more complex than a standard single-speed gearbox. CZPT doesn’t need to add complexity to its electric vehicles. After all, a 355 horsepower family wagon is not likely to need a dual-speed gearbox.
    In addition to simplifying the transmission, the patent claims also address improvements in structural design. Fig. 5 shows a schematic representation of a transmission 50′, wherein gear sets Z1 and Z4 are exchanged between partial transmissions. This switch matrix also reflects the synchronized gears and lastshelf gears. Hydraulically betatigte Lamellenkupplungen (HBA) also form a last-shelf gear.
    Another advantage of the patent claim is that it offers numerous functional freedoms, which is especially valuable in the design of an automobile. One of the patent claims identifies a tosatzlicher middle gear that allows a driver to switch between second and third gears, with a single gearbox. In a conventional one-speed transmission, the tosatzlicher middle gear is attached to the second and first part gearbox. The latter has a second and third gear.

    China New design Induction 1000w Ac Gearbox China Speed Reducer For Electric Motor 135kw with high quality     automatic gearbox	China New design Induction 1000w Ac Gearbox China Speed Reducer For Electric Motor 135kw with high quality     automatic gearbox
    editor by czh 2023-02-17