Tag Archives: planetary gearbox for motor

China factory Crawler Excavator Planetary Gear Swing Travel Motor Reductor Final Drive Gearbox Gears Pc120 Pc200 Pc360 Spare Parts For CZPT near me manufacturer

Problem: New
Applicable Industries: Machinery Repair Retailers, Production Plant, Retail
Showroom Area: None
Movie outgoing-inspection: Provided
Equipment Check Report: Not Accessible
Marketing and advertising Type: New Item 2571
Warranty: 1 Year, 1 Yr
Software: Alternative
Solution name: 1st World Provider Assy
High quality: High-Quality
Shipping and delivery time: 1-3 Days/No
Substance: Metal
Utilize to: Vacation Gearbox
Packing: Wood Case
Shade: Black
Portion Variety: 203-27-53221
Packaging Details: Picket Case
Port: HuangPu

Goods Description TitleCrawler Excavator Planetary Equipment Swing Vacation Motor Reductor Closing Travel Gearbox Gears Pc120 Pc200 Pc360 Spare Parts For KomatsuRelevant IndustriesManufacturing Plant, Equipment Restore Stores, OtherDevice modelPC120-6 PC120-5Compatible Brand nameFor KomatsuPackingWood CircumstanceTailored supportOEMSoftwareExcavator reducer Organization Profile 1. Are you a manufacturing facility?Of course, 4000 Nm reducer planetary DH4B7Y auger gearbox we have our own manufacturing facility which covers an region of 36,875 square meters.two. What is the warranty time of the merchandise?The warranty time is 6/twelve months primarily based on the merchandise specifics We do not give warranty time for authentic and utilized merchandise.3. What is your shipping time?Generally, we will prepare the merchandise in 24 hrs following your payment if not in inventory, China sizzling double input shaft worm speed gearbox stocking time is 3-7 times.4. What are your major goods ?We are specialized in spare parts for excavator hydraulic technique, this kind of as travel/swing motor, journey/swing gearbox/elements, hydraulic pump/parts,gear elements,and so on. If you need other excavator components, High precision Appropriate Angle Planetary Gearbox Flange Planetary Gearbox Velocity Reducer we also can provide as your specifications. 5. How can I do if there is some thing incorrect with the goods?Very first at all, we have self-assurance in the quality of our products, if you genuinely found some thing mistaken, you should provide pictures or video for us and we will verify. Right after it is verified, you should return the items to us and we will provide the appropriate merchandise.6. How do I spend?You can spend by T/T, PayPal (for modest amount) and Alibaba trade assurance

How to Choose a Gearbox

When you travel your motor vehicle, the gearbox offers you with traction and pace. The reduced equipment supplies the most traction, whilst the larger gear has the most speed. Choosing the correct gear for your driving problems will aid you improve each. The appropriate gearing will differ dependent on road conditions, load, and speed. Limited gearing will accelerate you far more rapidly, although tall gearing will increase best velocity. Nevertheless, you need to recognize how to use the gearbox just before driving.
gearbox

Purpose

The function of the gearbox is to transmit rotational power to the machine’s drive teach. The ratio amongst enter and output torque is the ratio of the torque to the pace of rotation. Gearboxes have several diverse capabilities. A gearbox could have a number of features or a single purpose that is used to travel several other machines. If one particular gear is not turning, the other will be able to switch the gearbox. This is where the gearbox gets its title.
The pitch-controlled technique has an equal variety of failure modes as the electrical method, accounting for a big proportion of the longest equipment downtime and halt time. The partnership among mechanisms and faults is not simply modeled mathematically. Failure modes of gearboxes are shown in Fig. 3. A gearbox’s accurate provider life is 6 to eight several years. Nonetheless, a gearbox’s fault detection procedure should be created as experienced technological innovation is essential to reduce the downtime and stay away from catastrophic incidents.
A gearbox is a essential piece of machinery. It processes vitality developed by an engine to move the machine’s parts. A gearbox’s efficiency depends on how effectively it transfers power. The greater the ratio, the far more torque is transferred to the wheels. It is a common ingredient of bicycles, autos, and a assortment of other products. Its four major features incorporate:
In addition to ensuring gearbox dependability, a gearbox’s maintainability ought to be evaluated in the design phase. Maintainability considerations ought to be integrated into the gearbox design and style, these kinds of as the variety of spare elements accessible. An suitable maintenance routine will also establish how typically to replace or mend certain parts. A proper maintenance procedure will also make sure that the gearbox is available. Whether or not it is easy to obtain or difficult to achieve, accessibility is crucial.

Purpose

A car’s transmission connects the engine to the wheels, enabling a higher-velocity crankshaft to give leverage. Substantial-torque engines are required for the vehicle’s commencing, acceleration, and conference road resistance. The gearbox lowers the engine’s velocity and provides torque versions at the wheels. The transmission also provides reversing energy, creating it possible to go the automobile backwards and forwards.
Gears transmit electricity from a single shaft to an additional. The size of the gears and amount of enamel decide the sum of torque the device can transmit. A larger equipment ratio signifies far more torque, but slower speed. The gearbox’s lever moves the engaging portion on the shaft. The lever also slides the gears and synchronizers into location. If the lever slips to the remaining or correct, the engine operates in next gear.
Gearboxes need to have to be carefully monitored to lessen the chance of premature failure. Different tests are obtainable to detect faulty equipment teeth and increase machine dependability. Determine 1.eleven(a) and (b) demonstrate a gearbox with 18 teeth and a 1.5:1 transmission ratio. The input shaft is linked to a sheave and drives a “V” belt. This transmission ratio enables the gearbox to decrease the speed of the motor, while increasing torque and minimizing output speed.
When it comes to velocity reduction, equipment box is the most common method for lowering motor torque. The torque output is immediately proportional to the volume of the motor. A small gearbox, for instance, can make as a lot torque as a big motor with the exact same output velocity. The same retains real for the reverse. There are hybrid drives and in-line gearboxes. Regardless of the variety, knowing about the features of a gearbox will make it less difficult to pick the correct one for your particular software.
gearbox

Application

When deciding on a gearbox, the provider issue must be deemed. Support element is the variation in between the actual ability of the gearbox and the value necessary by the application. Additional needs for the gearbox may possibly end result in premature seal wear or overheating. The service issue should be as reduced as achievable, as it could be the big difference amongst the life time of the gearbox and its failure. In some cases, a gearbox’s service issue can be as high as 1.4, which is enough for most industrial apps.
China dominates the renewable strength business, with the premier mounted potential of one thousand gigawatts and far more than 2000 terawatt several hours of electricity created each and every 12 months. The development in these sectors is predicted to increase the need for gearboxes. For illustration, in China, wind and hydropower strength production are the significant components of wind and solar electrical power vegetation. The elevated installation potential signifies elevated use of gearboxes for these industries. A gearbox that is not suited for its software will not be purposeful, which may be harmful to the production of items in the region.
A gearbox can be mounted in 1 of four different positions. The first a few positions are concentric, parallel, or right angle, and the fourth placement is shaft mount. A shaft mount gearbox is generally utilised in programs where the motor can’t be mounted through a foot. These positions are mentioned in a lot more depth below. Deciding on the proper gearbox is important in your enterprise, but don’t forget that a nicely-developed gearbox will aid your bottom line.
The services issue of a gearbox is dependent on the type of load. A large shock load, for case in point, can result in premature failure of the equipment tooth or shaft bearings. In these kinds of cases, a greater service element is required. In other cases, a gearbox that is developed for high shock masses can stand up to such loads with no deteriorating its overall performance. Additionally, it will also reduce the price of keeping the gearbox more than time.

Material

When deciding on the materials for your gearbox, you should balance the toughness, toughness, and price of the design. This article will discuss the distinct kinds of supplies and their respective programs and electricity transmission calculations. A range of alloys are offered, every of which offers its very own benefits, including improved hardness and wear resistance. The adhering to are some of the common alloys utilized in gears. The advantage of alloys is their competitive pricing. A equipment manufactured from 1 of these resources is typically much better than its counterparts.
The carbon content material of SPCC prevents the content from hardening like SS. Nonetheless, thin sheets made from SPCC are typically utilised for gears with reduced power. Simply because of the lower carbon content, SPCC’s floor doesn’t harden as quickly as SS gears do, so gentle nitriding is needed to give hardness. Nevertheless, if you want a equipment that won’t rust, then you ought to think about SS or FCD.
In addition to cars, gearboxes are also utilized in the aerospace sector. They are used in place journey and are used in plane engines. In agriculture, they are utilised in irrigation, pest and insect handle equipment, and plowing devices. They are also utilised in design gear like cranes, bulldozers, and tractors. Gearboxes are also utilized in the foods processing market, including conveyor programs, kilns, and packaging machinery.
The enamel of the gears in your gearbox are important when it will come to efficiency. A effectively meshing gear will let the gears to accomplish peak overall performance and withstand torque. Gear enamel are like tiny levers, and successful meshing lowers anxiety and slippage. A stationary parametric analysis will aid you establish the good quality of meshing all through the gearing cycle. This technique is typically the most precise way to establish whether or not your gears are meshing well.
gearbox

Production

The global equipment market is divided into 5 essential areas, specifically, North The united states, Europe, Asia Pacific, and Latin The us. Between these areas, Asia Pacific is envisioned to make the biggest GDP, owing to rapidly growing vitality need and investments in industrial infrastructure. This area is also residence to some of the premier production bases, and its constant developing of new buildings and homes will assistance the industry’s development. In terms of software, gearboxes are used in development, agricultural equipment, and transportation.
The Industrial Gearbox industry is expected to grow for the duration of the subsequent many a long time, pushed by the fast progress of the design business and enterprise advancements. Nevertheless, there are numerous issues that hamper the expansion of the sector. These contain the substantial cost of functions and routine maintenance of gear models. This report handles the market dimensions of industrial gearboxes globally, as nicely as their production technologies. It also contains maker information for the period of 2020-2024. The report also functions a dialogue of marketplace motorists and restraints.
International overall health disaster and lowering seaborne commerce have reasonably adverse outcomes on the business. Falling seaborne commerce has created a barrier to investment. The price of worldwide crude oil is predicted to cross USD by April 2020, placing an end to new belongings improvement and exploitation. In these kinds of a scenario, the global gearbox market will confront several issues. However, the chances are huge. So, the market place for industrial gearboxes is anticipated to develop by much more than 6% by 2020, many thanks to the growing quantity of gentle autos marketed in the region.
The primary shaft of a gearbox, also recognized as the output shaft, spins at different speeds and transfers torque to an automobile. The output shaft is splined so that a coupler and equipment can be linked to it. The counter shaft and principal shaft are supported by bearings, which minimize friction in the spinning factor. Another critical portion of a gearbox is the gears, which differ in tooth count. The number of teeth decides how a lot torque a equipment can transfer. In addition, the gears can glide in any place.

China factory Crawler Excavator Planetary Gear Swing Travel Motor Reductor Final Drive Gearbox Gears Pc120 Pc200 Pc360 Spare Parts For CZPT  near me manufacturer China factory Crawler Excavator Planetary Gear Swing Travel Motor Reductor Final Drive Gearbox Gears Pc120 Pc200 Pc360 Spare Parts For CZPT  near me manufacturer

China best AH090 Series 2-stage High Precision Helical Gear Planetary Reducer Gearbox for Servo Stepper Brushless Motor Factory Automation near me factory

Warranty: 12 months
Relevant Industries: Producing Plant, Equipment Restore Stores, CNC Router, Packaging Device, Healthcare Equipment, Electronics Equipment, Logistics Tools, Aerospace Market, Armed forces Sector, Manufacturing unit Automation
Excess weight (KG): 3.7 KG
Customized assistance: OEM, ODM
Gearing Arrangement: Planetary
Output Torque: Rated fifty to 75N.m
Input Pace: Rated 3000 RPM, Max. 6000 RPM
Output Speed: ≤2000RPM
Advantages: Higher Torque Precision,Lower Nose, Added Prolonged Life time,Value Efficiency
Matching Motors: All Manufacturers of Concentrate on Servo &Stepper Motors
Effectiveness: 95%
Max. Torque: 2 Times of the Rated
Backlash: <3arcmin or <5arcmin
Sounds Level: <62dB
Regular Life span: 20000 several hours
IP Grade: IP65
Make contact with Us for: Reduction ratios, shaft adapter particulars, customizations etc.
Programs: CNC Centre& Router,Electronics,New Power,Textile,Packaging,Healthcare
Packaging Details: Effectively packed in cartons or pallets, which assistance all shipment strategies, these kinds of as specific shipping, airway, sea and practice shipments.
Port: Chinese Mainland Ports

Shop Advertising Contact Us for, Sizzling Offering Good Quality 3000rpm Reduction Prices Motor Gearbox Electric powered 1. Detailed customizationrequirements.2. Greater charges for orders with volume.3. Specific leadtime and shipping requirments. Concentrate on Purposes Extensively Used in Automation SectorA. CNC Centre and CNC Routers, like Reducing, ENGRAVING, MILLING, MARKING, WELDING, SOLDERING etc processing strategies andcutting instrument like Laser, Plasma, Device Instrument etc.B. Health-related and healthcare equipment, this sort of as CT Scanner, X-ray Scanner, Operation Robotics, Diagnose and Examination, etc.C. Equipment, this kind of as Electronics manufacturing, Aerospace, Army Business, Automotive Producing, Logistics Method, Textile, Printing, Meals Market, Packaging, and many others. Merchandise Highlights Match with All MotorsCustomization of set up flange.Enter shaft adapter accessible.Matching all makes of Servo motors (Panasonic,Mitsubishi, Sanyodenki, Right AngleWorm GearboxReducer Delta, and so on. ) and stepper motors.Substantial FunctionalityLarge Trustworthiness,Large Performance,Lengthy Life span (average 20000 hrs), High Torque,Low Noise,Large Speed Selection,Substantial Precision.one hundred% Substitute Replace other manufacturers of planetary reducers effortlessly and offered hundreds of hundreds in large-conclude automation industry. Buyer Values Lower Whole Price of OwnershipLarge overall performance, added long lifetime and cost-free of maintenance assists to conserve TCO.Shorter Time to IndustryExperienced items & tactics,simple to use, fast customization aids to minimize equipment improvement time.Increased Machine Specialties and Customer LoyaltyAdaptable customization supplies the most suitable merchandise for your software.Contact us for your need. Collection Overview Item Specs Crucial Overall performance ParametersPlease get in touch with us if u want to know a lot more or want the total catalog. Mechanical Proportions for 1 phase(L1), 2 stage(L2), 3 phase(L3). You should refer to the determine above for reductions ratios of every stage.Motor Integration side can be tailored if required. Item Packaging Solitary Piece5-layers more compact Carton Box, which is robust enough for all types of cargo. Carton Far more than 1 and less than 20 pieces will be packed in 1 carton, which is also 5 levels export level and powerful enough for all shipments strategies. PalletMore than 8 cartons can be packed in Eco-helpful pallets, which is especially ideal for prepare and sea shipments. Business Profile Your Reputable Motion Control PartnerFirm:Future Oriented Growth Technique,Concentrated on center & Higher-conclude Industrial Automation Segments,Rich Industrial Automation Experiences,Cutting-edge & Customer Oriented Goods High Functionality & Trustworthiness.R&D:More than 15 A long time Experiences,Extensive Intercontinental R&D Cooperation, 4G 0571 571AF Engine Gearbox Oil Cooler For Audi A7 C7 2015 3.0TDI Diesel 4G 0571 571T Transmission Oil Cooler Versatile & Quickly Customization,Constant Technologies EvolutionHigh quality Manage:Rigorous High quality Control Program, 100% Functional Check, a hundred% 48 Several hours Growing older Tests, Rich Certificates, ISO9001, CE, ROHS, Reach and so on. FAQ 1. How can it be suitable with all manufacturers of servo and stepper Motors?We can do motor mounting facet customization and shaft adapter customization, which permits our planetary reducer compatible with allbrands of servo and stepper motors.2. Are your reducers actual planetary?Sure. Also we have patents of the reducers, specific design and metallic processing strategies, which allow them operating with considerably less sounds and lengthier life span.3. If we need larger quantity, is much better rates offered?Indeed. Remember to contact our client service any time and we are completely ready to aid! 4. How about guarantee?We have twelve months warranty for most products and for special area this sort of as EU we have eighteen months warranty.For big volume order, we supply totally free again up reducers.5. What shipment approaches supported?All approaches are supported, this sort of as specific shipping, air cargo, china-Europe practice cargo, sea shipment, and so on.6. What if the transport value greater than predicted?Remember to get in touch with us for freight charge optimization, and we will provide dependable and reasonable shipment. 7. Is your organization and trader or producer?We are producer and our HQ is in HangZhou and have 5 affiliated companies for various items manufacturing. Welcome to go to our business!8. What certification does your business and Merchandise have?We have ISO9001, CE, ROHS, Achieve and many others.We also can do certificates as for every buyer requirement.9. OthersContact us whenever and we are ready aid! 4x46x6 fifteen-Ton Large Duty Truck Transfer GearboxCase with High Lower Ratio

Types of Automobile Gearboxes

In a car, there are a lot of varieties of gearboxes accessible. There are planetary gearboxes, Coaxial helical gearboxes, and skew bevel helical gearboxes, amongst other folks. In this post, we’ll protect all of them and aid you establish which variety of gearbox would be right for your vehicle. Also, we are going to talk about how every single differs from the other individuals.
gearbox

planetary gearbox

A planetary gearbox is composed of a few major parts: a solar gear, an enter bevel gear, and an output shaft. A planetary gearbox can have diverse output torques and ratios. The fundamental product of a planetary gearbox is extremely efficient and transmits 97% of the electrical power input. There are many kinds of planetary gearboxes, dependent on the type of procedure. In common, there are three kinds: the simple, the intermediate, and the complex.
The cost of a planetary gearbox can fluctuate a lot, and it really is essential to know what you will require. Various manufacturers generate various planetary gearboxes, so check with a producer to see what they have accessible. Make positive to check the high quality of the planetary gearbox ahead of creating a ultimate obtain. In addition, be confident to evaluate the costs and the availability of a distinct product. A quality planetary gearbox will provide a long time of difficulty-totally free operation and will not break your financial institution.
Planetary gears feature an integer number of enamel. Each and every earth has tooth that need to mesh with its ring or sunlight. The variety of planets, ring, and tooth depend of each and every equipment figure out whether or not the tooth mesh. Some planets have less teeth than other individuals, so they mesh better than other individuals. However, compound planets can be much more flexible and achieve increased reduction ratios. If you are looking for a planetary gearbox for your up coming task, take into account acquiring in contact with a company who specializes in this technology.
When it comes to development, a planetary gearbox is no exception. It really is extremely crucial to select the right planetary gear for your application, simply because an imbalance in the world gear can result in increased put on and failure. Moreover, the compact dimensions of a planetary equipment guarantees greatest heat dissipation. Even so, a planetary equipment box could need cooling in some purposes. A planetary gearbox will make your daily life less difficult, and it will give you several years of trouble-cost-free operation.

Straight bevel helical gearbox

The Straight bevel helical gearbox has a quantity of positive aspects, but it has a relatively short manufacturing approach. Its most popular software is in the automotive market, the place it is used in a lot of types of cars. Other apps consist of large and gentle gear and the aviation and maritime industries. Underneath is a quick introduction to this gearbox kind. Read through on to understand about its benefits. This sort of gearbox is a single of the best to manufacture.
The spiral bevel equipment has greater tooth than straight bevel gears, resulting in a smoother, quieter rotation. It can deal with substantial-velocity hefty loads with considerably less vibration. Spiral bevel gears are classified by their tooth form and chopping technique. Straight bevel gears are simpler to style and manufacture, but spiral bevel gears are more costly. Each patterns are suitable for substantial-speed, large-load operations, and general manufacturing apps.
In addition to becoming straightforward to set up, the modular bevel gears have several benefits. They have an exceptionally substantial diploma of interchangeability and characteristic the highest requirements of part integrity. They can also be customized to fulfill your particular requirements. The benefits of this gearbox type include high precision, optimum overall performance, and minimal sounds. And since they are modular, they can be created in a assortment of finishes. These include stainless steel, titanium, and bronze.
Straight bevel helical gearbox manufacturers are dedicated to a large degree of precision in their types. The radii, torques, and tooth profiles of straight bevel gears are much more specifically calculated than those of cylindrical bevel gears. The very same calculations are employed for all classic bevel gear turbines. This makes certain that your 5-axis milled bevel equipment sets have the identical calculations and layout.
gearbox

Coaxial helical gearbox

The Coaxial helical gearbox is a very efficient transmission method that is properly suited for light-weight-responsibility apps. When compared to spur-variety gearboxes, the genuine pitch of a Coaxial helical gearbox is low at all helix angles. This is since the coaxial kind has the identical amount of tooth and heart hole as the spur gearbox. Coaxial helical gearboxes also have a more compact footprint and are compact.
Several nations have carried out lockdown restrictions for Industrial Gearbox trade, threatening the world-wide economic system. Numerous elements have been implicated in COVID-19, like offer chain, market place, and fiscal markets. Professionals are monitoring the situation globally and project remunerative prospective customers for gearbox companies right after the disaster. This report depicts the most current scenario and provides a thorough examination of COVID-19’s effect on the entire market.
This Coaxial helical gearbox functions a compact structure and high precision equipment. Its 3-phase style brings together two-phase gears with a one-stage gear, forging large-high quality alloy steel for higher precision and longevity. The gears are serially-designed for simple interchangeability. They are also accessible in substantial-frequency heat-treated metal. A Coaxial helical gearbox is the best remedy for many purposes.
Coaxial helical gearboxes have the included reward of making use of cylindrical gears instead of shafts. They work quietly, and have more area spot to interact with. Their fastened angles make them suited for weighty-duty purposes, like in conveyors, coolers, and grinders. Compared to other gearbox kinds, Helical gearboxes have greater electrical power-carrying capacity. Shown under are the benefits of a Coaxial Helical Gearbox

Skew bevel helical gearbox

A Skew bevel helical gear box is a typical kind of industrial gearbox. These gearboxes are rigid and compact and can be used in a assortment of programs. They are generally used in weighty-responsibility programs these kinds of as grinding mills, conveyors, and coolers. They are utilized in several apps to provide rotary motions in between non-parallel shafts. They also have the added benefit of high-effectiveness in a assortment of industries.
Skew bevel helical equipment packing containers are suited for large hundreds and are monolithic in building. This sort of gearbox brings together the advantages of bevel and helical gears for right-angle torque, which can make it a popular decision for heavy-responsibility apps. In addition to becoming a strong and dependable gearbox, these gearboxes are extremely customizable and can meet up with virtually any industrial need.
To optimize the efficiency of bevel gears, FE-primarily based tooth make contact with examination is employed to produce a sophisticated geometry optimization algorithm. The software also permits consumers to define best flank topography by introducing software-specific weightings for distinct load amounts. With this data, a production simulation is carried out to figure out the very best variant. A robust variant combines the advantages of effectiveness, load-carrying capability, and low excitation habits.
The helical gear can be angled at ninety degrees. This is equivalent to a spur gear but generates significantly less noise. It can attain a 9-to-one particular pace reduction with a single stage. Nonetheless, a helical equipment calls for a bigger driver gear for higher reductions. This gearbox is suited for speeds from 1:1 to three moments. They are typically utilised in the manufacture of motors and generators.
gearbox

Extruder helical gearbox

An extruder helical gearbox is one of the most widespread industrial gears. It is compact in size and lower-power consuming, generating it best for hefty-obligation applications. Extruder helical gearboxes are appropriate for a assortment of industrial apps, like cement, plastics, rubber, conveyors, and coolers. In addition to its use in plastics and rubber manufacturing, this gearbox is also useful in other reduced-electrical power applications these kinds of as crushers, coolers, and conveyors.
CZPT SG collection Extruder Helical Gearboxes are offered in Solitary Screw and Twin Screw Versions. These gears characteristic a compact design and style, large energy density, and long provider life. Axial bearing housing and thrust bearings are mounted on the input shafts. Extruder helical gearboxes can be mounted in different positions, such as horizontal, vertical, and inclined.
Helicoidal gears are often created in a modular manner. This design gives a number of positive aspects, which includes engineering and performance benefits, modular production, and the optimum stage of component integrity. A one helical gearbox can be assembled into a more substantial gearbox if essential, but modular generation makes certain constant efficiency and economy. This modular design and style is also price-powerful. It is a flexible and dependable remedy for a broad assortment of programs.
In addition to its efficiencies, Extruder helical gearboxes also have a reduced sounds profile. They have no squeal appears, and they are silent when running. They can transfer more electricity than standard gearboxes. This type of equipment has been employed in the manufacturing of substantial-high quality plastic merchandise for a long time. They are often utilised for purposes in automotive transmissions. Apart from being tranquil, helical gears have higher speak to ranges and lower vibration.

China best AH090 Series 2-stage Substantial Precision Helical Equipment Planetary Reducer Gearbox for Servo Stepper Brushless Motor Factory Automation  near me manufacturing unit China best AH090 Series 2-phase Substantial Precision Helical Gear Planetary Reducer Gearbox for Servo Stepper Brushless Motor Factory Automation  around me factory