Tag Archives: worm gear reducer in

Cduw factory made in China replacement parts in Antipolo Philippines Cone Worm Gear Reducer Machinery with Two Stages with top quality

Cduw factory made in China  replacement parts  in Antipolo Philippines Cone Worm Gear Reducer Machinery with Two Stages with top quality

We – EPG Group the greatest gearbox & motors , couplings and gears manufacturing facility in China with 5 different branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828

Cduw Cone Worm Equipment Reducer Machinery With Two Stages 

Specialized data:
1. Ratio range: 10-sixty three
two. Enter power: 1.5-450KW
3. Allow torque rang: ≤40000N. M
four. Framework mode: Chance of flange, foot, or shaft mounting answers

Characteristic
1. Double-enveloping worm gearing, 3-5 enamel get in touch with
two. Tiny quantity, huge capacity
3.3-5 moments than universal worm gear
four. High performance, 66%-91%

Packaging & Transport

Deal :                                                                                                

ept gearbox use normal wood situation for each equipment gear unit.

hipping :                                                                                               

According to Buyer requirement, we delivery goods by diverse transport, Sea delivery, Air Transportation / Specific or Truck transportation and so on.

You Appoint, We Service!

Our Services

With all our actions DNV-ISO 9001, SGS -qualified, we stand for best-top quality support. Entrusting your gearboxes to the care of our Solutions.

Assist protect your gearbox from wear and grinding, SGR gearbox converts torque reliably and effi­ciently.
We customize our ept planetary gear units, double enveloping worm gearbox, helical gear motor, modular design helical gear unit, worm gearbox, cycloidal gearbox and many others to suit your application and satisfy your wants. 

These characteristics enable a reliable and protected provider life of over two hundred 000 operational hours. 

Our consumers have been inserting their ept in ept gear models since 1997. Much more than 500 000 gear models of our gearbox are in use reliably close to the globe, in several circumstances beneath really severe problems.

 

Our Honour and Patent :                                                                                                      

ABOUT US:                                                                                         

ZheJiang ept Heavy ept Machinery Co., Ltd.(formerly acknowledged as ZheJiang Excellent Wall Reducer Co., Ltd. ) ( )  has accrued abundant authentic planning & producing encounter soon after becoming founded in 1996. ept model planetary equipment reducer has won honor of “Science and Technology Improvement Prize” awarded by the Countrywide Pace Reducer & Variator ept Affiliation.

We create planetary equipment models, planar double-enveloping worm equipment velocity reducers (cone worm gear reducer), helical-bevel gear motors, worm gear reducers, helical worm equipment motors, helical equipment motors and many other varieties of gear units. ept equipment motors and gear units have offered satisfactory efficiency in various industrial programs, such as metallurgy, mineral, architecture, shipbuilding, petroleum combination, aviation place-flight, lift routeing, textile mechanic, cement, prescription drugs, pumps, general ept and other domain.

With the advantage of higher good quality & aggressive price, ept equipment motor and gear models are commonly welcomed in the domestic industry and exported to Southeast Asia, Center Asia, North The usa and European international locations and many others.

With the outstanding tests program, ept business is always maintaining up with the most superior technology in the entire world. We have currently obtained DNV-ISO9001: 2008 certification,SGS, CE and so forth and a patent on ept branded gearbox. 

We have adopted superior CAD and CIMS in layout & manufacture, which aid our engineers produce 3 – 5 sequence of new productive products every year. All personnel in sales & services section are nicely skilled termly, thus you will be often warmly welcomed and recognized by our company.

 

FAQ

  • Q:  What is your company type?
  • A: ept is gearbox producer and Options Company,  we are specialists of the planetary equipment reducer, cone worm gearbox, modular design and style helical gear motor, worm gearbox and so on. A suitable design will provide to you according to your need, besides, ept also has expert technical team special in the personalized gearbox and gearbox repair.   

 

  • Q: How extended can you give products ensure Period of time?
  • A: Primarily based on various gearbox types, 12-eighteen months.

 

  • Q: What is Certification your product acquiry  ?
  • A: DNV-ISO9001:2008 ,SGS ,CE etc. and new products patent.

 

  • Q: How many technical staff in your business? 
  • A: We have ten engineers in our R&D Dep., incorporated 2 engineers who get pleasure from federal government ‘s allowance.

 

  • Q: Where is your firm & how to make contact with you?
  • A: Our manufacturing facility found in No.879 , JinLiu Rd, JinShan District , ZheJiang  City , China .

The use of original equipment manufacturer’s (OEM) portion numbers or trademarks , e.g. CASE® and John Deere® are for reference functions only and for indicating solution use and compatibility. Our company and the detailed alternative components contained herein are not sponsored, accepted, or made by the OEM.

Cduw factory made in China  replacement parts  in Antipolo Philippines Cone Worm Gear Reducer Machinery with Two Stages with top quality

Cduw factory made in China  replacement parts  in Antipolo Philippines Cone Worm Gear Reducer Machinery with Two Stages with top quality

Qualified can you reverse the direction of an ac motor factory made in China – replacement parts – in San Francisco United States RV Series Worm Gear Reducer for Lifting Systems with top quality

Qualified can you reverse the direction of an ac motor factory  made in China - replacement parts -  in San Francisco United States  RV Series Worm Gear Reducer for Lifting Systems with top quality

We – EPG Team the most significant worm gearbox, couplings and gears factory in China with 5 distinct branches. For more particulars: Cell/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828 /

Qualified RV Collection Worm Gear Reducer For Lifting Methods

RV Collection
Which includes RV / NMRV / NRV.
Main Characteristic of RV Collection Worm Gearbox
RV sequence worm equipment reducer is a new-generation item created by ept on the basis of perfecting WJ series merchandise with a compromise of sophisticated technological innovation both at residence and abroad.
1. High-high quality aluminum alloy, light in bodyweight and non-rusting.
two. Huge in output torque.
3. Smooth running and lower sounds,resilient in dreadful situations.
four. Higher radiation effectiveness.
5. Excellent-loo ept appearance, sturdy in services lifestyle and tiny volume.
six. Appropriate for omnibearing set up.
Primary Materials of RV Series Worm Gearbox
one. Housing: die-solid aluminum alloy(frame measurement: 571 to 090), cast iron(body dimension: a hundred and ten to 150).
2. Worm: 20Crm, carbonization quencher warmth remedy tends to make the surface area hardness of worm gears up to 56-62 HRX, retain carbonization layer’s thickness among .3 and .5mm following precise grinding.
three. Worm Wheel: wearable stannum bronze alloy.

SPEED RATIO seven.5~one hundred
OUTPUT TORQUE <1050NM
IN POWER .09-11KW
MOUNTING TYPE FOOT-MOUNTED FLANGE-MOUNTED

 

When doing work, fantastic load ability, steady operating, minimal sound with  large effectiveness.
  Equipment Box’s Utilization Subject
1 Metallurgy       11 Agitator  
two Mine       twelve Rotary weeder  
3 Machine       thirteen Metallurgy   
four Energy       fourteen Compressor
five Transmission     15 Petroleum market
six Water Conserbancy     16 Air Compressor
seven Tomacco       17 Crusher  
eight Health care       eighteen Materials
nine Packing     19 Electronics  
ten Chemical business     twenty Textile indutry
           
Power .06kw .09kw .12kw .18kw .25kw .37kw .55kw
.75kw 1.1kw one.5kw 2.2kw 3kw 4kw 5.5kw
seven.5kw 11kw 15kw        
Torque 2.6N.m-3000N.m
Ratio 7.5-a hundred, the double gearbox is  a lot more
Coloration Blue, Silver or as customers’ want
Content Iron or Aluminium
Packing Carton with Plywood  Circumstance or as clients’ requirement
Sort RV571 RV030 RV040 RV050 RV063 RV075 RV090
Fat .7kg 1.3kg 2.3kg three.5kg 6.2kg 9kg 13kg
Kind RV110 RV130 RV150        
Fat 35kg 60kg 84kg        
Mounting Methods Foot Set up   Flange Installation
For various  mortor or double input/output shafts can be outfitted

Merchandise image:

Composition:

Certificate:

Pac ept & Supply:

Our firm:
AOKMAN® was established in 1982, which has much more than 36 years in R & D and producing of gearboxes, gears, shaft, motor and spare elements.
We can offer you the appropriate answer for uncountable apps. Our goods are widely employed in the ranges of metallurgical, steel, mining, pulp and paper, sugar and liquor industry and different other varieties of equipment with a strong existence in the global marketplace.
AOKMAN® has become a reliable supplier, capable to source higher high quality gearboxes.With 36 years knowledge, we guarantee you the utmost dependability and safety for the two solution and companies.

Consumer going to:

FAQ:
one.Q:What sorts of gearbox can you generate for us?
A:Primary products of our firm: UDL collection speed variator,RV series worm equipment reducer, ATA series shaft mounted gearbox, X,B collection gear reducer,
P series planetary gearbox and R, S, K, and F series helical-tooth reducer, more
than one hundred versions and hundreds of specifications
two.Q:Can you make as per custom drawing?
A: Sure, we offer you personalized support for clients.
3.Q:What is your terms of payment ?
A: 30% ept payment by T/T following signing the deal.70% prior to delivery
4.Q:What is your MOQ?
A: 1 Set

Welcome you contace me if you are fascinated in our product.
Our crew will help any need you might have.

/ The use of first gear manufacturer’s (OEM) portion numbers or logos , e.g. CASE® and John Deere® are for reference functions only and for indicating product use and compatibility. Our organization and the listed replacement components contained herein are not sponsored, approved, or produced by the OEM. /

Qualified can you reverse the direction of an ac motor factory  made in China - replacement parts -  in San Francisco United States  RV Series Worm Gear Reducer for Lifting Systems with top quality

Qualified can you reverse the direction of an ac motor factory  made in China - replacement parts -  in San Francisco United States  RV Series Worm Gear Reducer for Lifting Systems with top quality

Worm baldor 5hp single phase motor wiring near me made in China – replacement parts – in Douala Cameroon Gearbox Gearing Reducer Nrv Worm Gear Speed Reducer Gearbox Hypoid Gear & Gearbox Replace of Worm Reducer and Gear Box with top quality

Worm baldor 5hp single phase motor wiring near me  made in China - replacement parts -  in Douala Cameroon  Gearbox Gearing Reducer Nrv Worm Gear Speed Reducer Gearbox Hypoid Gear & Gearbox Replace of Worm Reducer and Gear Box with top quality

We – EPG Team the greatest worm gearbox, couplings and gears manufacturing unit in China with 5 different branches. For more information: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828 /

Worm Gearbox Gearing Reducer Nrv Worm Equipment Speed Reducer Gearbox Hypoid Gear & Gearbox Change of Worm Reducer and Equipment Box

 

/ The use of unique gear manufacturer’s (OEM) component figures or logos , e.g. CASE® and John Deere® are for reference needs only and for indicating solution use and compatibility. Our organization and the shown replacement parts contained herein are not sponsored, accredited, or produced by the OEM. /

Worm baldor 5hp single phase motor wiring near me  made in China - replacement parts -  in Douala Cameroon  Gearbox Gearing Reducer Nrv Worm Gear Speed Reducer Gearbox Hypoid Gear & Gearbox Replace of Worm Reducer and Gear Box with top quality

Worm baldor 5hp single phase motor wiring near me  made in China - replacement parts -  in Douala Cameroon  Gearbox Gearing Reducer Nrv Worm Gear Speed Reducer Gearbox Hypoid Gear & Gearbox Replace of Worm Reducer and Gear Box with top quality

GS hampton worm gear reducer supplier China in Novokuznetsk Russian Federation High Efficiency 60-400W 60mm 70mm 80mm 90mm AC Induction Motor with Gearbox with top quality

GS  hampton worm gear reducer  supplier  China  in Novokuznetsk Russian Federation  High Efficiency 60-400W 60mm 70mm 80mm 90mm AC Induction Motor with Gearbox with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

GS High Efficiency 60-400W 60mm 70mm 80mm 90mm AC Induction Motor with gearbox

Specification

 

Detailed Pictures


ept Mechanical Products include:

1. AC (gear) motor
2. DC & BLDC (gear) motor
3. Worm gearbox
4. Helical gearbox
5. Coreless motor
6. External rotor motor
7. Motor controller
8. Customized motor

If you have projects that need motors and gear boxes, please freely contact me. 

Company Overview

  

About Greensky Mechanical

  • History:  ept Mechanical is a motor brand of ept power company Limited. The brand ept Mechanical was founded in 2012 with investing in a 15 year old motor factory in ZHangZhoug Province. ept Power brought new management concept to the new joint company and increase the quality of the motors as ept Power always provides stable and good quality and service to the society. The Positioning of the brand is medium & high quality level. Our customers are mainly in Europe. We save cost by increasing the efficiency of production and delivery. 
  • Market:  ept has customers in 30 different countries. Germany, Austria, Japan, USA and Middle-East are our main market .
  • Mission:  “Once and forever” is our goal to serve customers in the world. Once we do business with customer, we will do business forever.

The advantages of wor ept with us are:

1.  Convenience. We can provide all types of motor & gearbox by manufacturing and out sourcing.
2.  High Quality. All products are <1% defect rate with ≥ 1 year guarantee.
3.  Low Cost. We seriously reduce cost on material, processing, assembling, pac ept and delivery.
4.  Flexible service. MOQ below 10pcs & customize available & urgent order solution.
5.  Fast response. Our principle is response in 15 minutes and provide solution in 24 hours.

We hope you enjoy cooperating with us.

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

GS  hampton worm gear reducer  supplier  China  in Novokuznetsk Russian Federation  High Efficiency 60-400W 60mm 70mm 80mm 90mm AC Induction Motor with Gearbox with top quality

GS  hampton worm gear reducer  supplier  China  in Novokuznetsk Russian Federation  High Efficiency 60-400W 60mm 70mm 80mm 90mm AC Induction Motor with Gearbox with top quality

R worm gears back driven wholesaler China in Bujumbura Burundi Series Helical Gear Speed Reducer Gearmotor with IEC Flange Input with top quality

R  worm gears back driven  wholesaler  China  in Bujumbura Burundi  Series Helical Gear Speed Reducer Gearmotor with IEC Flange Input with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

Cast Iron Material R Series Helical SEW Geared Motor without IEC Motor:
 

Housing material                                     HT200 high-strength cast iron from R37,R47,R57,R67,R77,R87                                                                         
Housing material     HT250 High strength cast iron from R97,107,137,147,157,167
 
Housing hardness HBS90-240
Gear material: 20CrMnTi
Surface hardnesss  of gear     HRC58°-62°
Gear core hardness HRC33°-40°
Input/Output shaft material           40Cr
Input/Output shaft hardness HBS241°-286°
Shaft at oil seal postion hardness HRC48 ° -55 °
Machining precision of gears  material Accurate grinding 6-5 grade
Heat treatment tempering, cementing, quenching etc
Efficiency Over 90%
Noise(Max) 60-68dB
Unit model Foot mounted,flange mounted
Input method flange input,inline input,shaft input
Vibration ≤20um
Backlash ≤20Arcmin
Bearing brands NSK,C&U etc
Oil seal brands NAK,SKF etc
Lubricant VG220
Motor IP55, F class
Motor shaft 40Cr, Tempering, cementing,quenching etc.  

 
1.Our Services

1.1.We provide 12 months Warranty.
1.2. We have thousands of gearbox reducers. From Input Power 0.06KW to 200KW, Ratio 1.3-289.74, Output speed 0-1095rpm and Output torque 1.4-62800Nm. They can meet your all different requirements for different industries.
1.3. We provide E-catalog or Paper catalog,so you can select the model easily according to your requirements 
1.4.You are welcome to visit our factory to check our products,we can help you to book the hotel or ticket
 
2.Company Information

2.1.Our Company:
The Predecessor for ZheJiang ept Drive CO.,Ltd (originally called HangZhou ept Transmission Machinery CO.,Ltd) State-owned military mould enterpriese which established in 1965.
 
ept is located in HangZhou,China and the factory covers an area of about 25000 square meters.
 
Production Capacity:more than half a million sets of speed reducer per year.

2.2.Our People: 
The company has a strong technical force. It has more than 400 employees at present, including more than 40 engineering technicians and 10 experts and senior engineers enjoying special allowances of the State Council. 
 
2.3. Our Certificates:
Passed ” ISO 9001 International Quality System Certificate”, “International Quality Credit AAA++ Ceritifacte” ,  ” Swiss SGS Certificate”, Iconic Brand in Chinese Electromechanical Industry”, “Famous Brand of ZheJiang Province”, “Non-public Scientific and Technological Enterprise in ZheJiang Province”, “National High and New-tech Enterprise”, “TOP 50 in Chinese Gear Industry” “2011 HangZhou Engineering and Technological R&D Center” and so on.

3. FAQ
 
Q:Are you a trading  company or manufacturer?
A: HangZhou ept Drive Co., Ltd previously was a State-owned ept Mold Factory, a state-owned military industrial enterprise established in 1965. It completed reform in 2002. Since reform, the company has developed rapidly. It took the lead in passing ISO9001 International Quality System Certificate and International Quality Credit AAA++ Certificate in 2004, and Swiss SGS Certificate in 2009. It has won such titles as “Iconic Brand in Chinese Electromechanical Industry”, “Famous Brand of ZheJiang Province”, “Non-public Scientific and Technological Enterprise in ZheJiang Province”, “National High and New-tech Enterprise”, and “Tope 50 in Chinese Gear Industry” successively

Q:Where do you base?
A: We are in HangZhou,ZheJiang ,China. We have two factories,New factory is in Xihu (West Lake) Dis. district,HangZhou,China and the old one is in CHangZhou District,HangZhou,China.

Q:What kinds of gearbox can you produce for us?
A:Main products of our company: JWB-X series mechanical continuously variable transmission, RV series worm gear reducer, B/JXJ cycloidal pin gear speed reducer, NCJ series gear reducer,  and R, F K, S series helical-tooth reducer (SEW), more than one hundred models and thousands of specifications.

Q:What are the application of the gearbox?
A:Products are widely used in ceramic, glass, food, metallurgy, beer & drink, printing and dyeing, textile, petrochemical engineering, warehouse logistics, wood-wor ept machine, environmental protection equipment, printing and packaging, pharmacy, and leather. Products are sold in some countries and regions, such as Europe, America, and Southeast Asia, and it possesses dozens of distributors and after-sale service agents.

Q:What is the material you use?

A1: Aluminum Housing body ( For the RV series worm gearbox Size 30~90)
   
A2: Cast iron(For the RV series worm gearbox, Size 110-150, For the NCJ  & F/R/S/K series helical gear reducer)

Our factory (ZheJiang ept Drive Co., Ltd.) is a  big and famous 6S standard Gearbox factory with around 380 employees since 1965 . We export to South Asia, Southeast Asia, Africa, Middle East, South America, North America, Europe…etc. We offer Gearbox to SIEMENS,ABB,SACMI,BUHLER,MODENA,KEDA…etc. Sincerely hope to establish a win-win business relationship with you.

Expecting to talk about more details with you ! 

Best Wishes

Jacky 
Factory: ZheJiang ept Drive Co., Ltd. (Previous name: HangZhou XingGuang Transmission Machinery)
Add: No.10,Xihu (West Lake) Dis.n Industrial Park, Baini Town, Xihu (West Lake) Dis. District, HangZhou City, ZheJiang Province, China. 
Tel : 0086~13083988828 1385811777857175253 ; 
Web: cn ;

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

R  worm gears back driven  wholesaler  China  in Bujumbura Burundi  Series Helical Gear Speed Reducer Gearmotor with IEC Flange Input with top quality

R  worm gears back driven  wholesaler  China  in Bujumbura Burundi  Series Helical Gear Speed Reducer Gearmotor with IEC Flange Input with top quality

3V flender worm gear reducer factory China in Verona Italy DC Gear Motor with top quality

3V  flender worm gear reducer  factory  China  in Verona Italy  DC Gear Motor with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

3V DC Gear Motor

Product Description

  • Specifications:
    • Rated voltage: 3.0 V DC
    • Rotation direction: CW/CCW
    • Reduction ratio: 36/1
    • Operating temperature range: -10-50ºC
    • Storage temperature range: -20-60ºC
    • Overall length: 28.3mm
    • Gearbox length: 13.3mm
    • rated torque of gearbox: 400gf.cm
    • instant torque of gearbox: 800gf.cm
    • Output power: 0.01-0.6W
    • Output Shaft: Metal
  • No load:
    • Speed: 319 rpm
    • Current: 90mA
  • On Load:
    • Rated speed: 278rpm
    • Rated current: 130mA
    • Rated torque: 41gf.cm
Model Application Parameters Rated Torque of Gear Box Instant Torque of Gear Box Gear Ratio Gear Box Length
L1
Rated At No Load At Rated Load Overall Length
L
Voltage Speed Current Speed Current Torque
VDC rpm mA rpm mA gf.cm mN.m mm gf.cm gf.cm mm
ZWPD012012-16 3.0 717 90 625 130 18 1.8 28.3 400 800 16 13.3
ZWPD012012-24 3.0 478 90 417 130 27 2.6 400 800 24
ZWPD012012-36 3.0 319 90 278 130 41 4.0 400 800 36
ZWPD012012-64 3.0 174 90 156 135 54 5.3 32.1 600 1200 64 17.1
ZWPD012012-96 3.0 116 90 104 135 81 7.9 600 1200 96
ZWPD012012-144 3.0 77 90 69 135 122 11.9 600 1200 144
ZWPD012012-216 3.0 52 90 46 135 182 17.9 600 1200 216

 above specifications just for reference and customizable according to requirements.   

2D Drawing:

  

Application

 

Audio and visual equipments

notebook PC, camcorder, car DVD, kinescope DVD, car CD player, camera, digital camera, headphone stereo, cassette tape recorder and etc.

Household application

electric shaver, tooth brush, kit ept appliances, hair clipper, sewing machines, massager, vibrator, hair dryer, rubdown machine, corn popper, scissor hair machine, vacuum cleaner, garden tool, sanitary ware, window curtain, coffee machine, whisk and etc.

Office automation equipments

CD-ROM, OA equipments, scanners, printers, multifunction machines copy machines, fax, FAX 13083988828 paper cutter, computer peripheral, bank machine and etc.

Automotive products

conditioning damper actuator, door lock actuator, retractable rearview mirror, meters, optic axis control device, head light beam level adjuster, car water pump, car antenna, lumbar support, automatic vending machine and etc.

Toys and models

radio control model, automatic cruise control, ride-on toy and etc.

Medical application

blood pressure meter, breath machine and etc.

Industrials

air freshener, display, flow control valves and etc.

Electric power tools

electric drill, screwdriver and etc.

Precision instruments

monitor, optics instruments and etc.

 

Product details show

 

Our Services:

  • ODM & OEM
  • Gearbox design and development
  • Related technology support

Packaging & Shipping

1) Pac ept Details

packed in nylon firstly, then carton, and then reinforced with wooden case for outer packing.
Or according to client’s requirement.

2) Shipping Details

samples will be shipped within 10 days;
batch order leading time according to the actual situation.

Company Information:

HangZhou ept Machinery & Electronics Co., Ltd was established in 2001,We provide the total drive solution for customers from design, tooling fabrication, components manufacturing and assembly. 

 

1) Competitive Advantages

  • 1) Competitive Advantages
    17+year experience in manufacturing motor gearbox
    We provide technical support from r&d, prototype, testing, assembly and serial production , ODM &OEM
    Competitive Price
    Product Performance: Low noise, High efficiency, Long lifespan
    Prompt Delivery: 15 wor ept days after payment
    Small Orders Accepted

 2) Main Products

  • Precision reduction gearbox and its diameter:3.4mm-38mm,voltage:1.5-24V,power: 0.01-40W,output speed:5-2000rpm and output torque:1.0 gf.cm -50kgf.cm,

  • Customized worm and gear transmission machinery;
  • Precise electromechanical motion module;
  • Precise component and assembly of plastic and metal powder injection.

Certifications

We Have passed to hold ISO9001:2015(CN11/3571),ISO14001:2004(U006616E0153R3M), ISO13485:2016(CN18/42018) and IATF16949:2016(CN11/3571.01).

and more…

FAQ

1. Can you make the gearbox with custom specifications?
YES. We have design and development team, also a great term of engineers, each of them have
many work years experience.

2.Do you provide the samples?
YES. Our company can provide the samples to you, and the delivery time is about 5-15days according to the specification of gearbox you need.

3.What is your MOQ?
Our MOQ is 2000pcs. But at the beginning of our business, we accept small order.

4. Do you have the item in stock?
I am sorry we donot have the item in stock, All products are made with orders.

5. Do you provide technology support?
YES. Our company have design and development team, we can provide technology support if you
need.

6.How to ship to us?
We will ship the goods to you according to the DHL or UPS or FEDEX etc account you provide. 

7.How to pay the money?
We accept T/T in advance. Also we have different bank account for receiving money, like US dollors or RMB etc.

8. How can I know the product is suitable for me?
Frist, you need to provide us the more details information about the product. We will recommend the item to you according to your requirement of specification. After you confirm, we will prepare the samples to you. also we will offer some good advances according to your product use.

9. Can I come to your company to visit?
YES, you can come to our company to visit at anytime, and welcome to visit our company.

10. How do contact us ?
Please send an inquiry .

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

3V  flender worm gear reducer  factory  China  in Verona Italy  DC Gear Motor with top quality

3V  flender worm gear reducer  factory  China  in Verona Italy  DC Gear Motor with top quality

Good worm and worm wheel animation manufacturer China in Prague Czechia Quality R Series 3 Phase Electric Motor Coaxial Helical Gear Reducer with top quality

Good  worm and worm wheel animation  manufacturer  China  in Prague Czechia  Quality R Series 3 Phase Electric Motor Coaxial Helical Gear Reducer with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

Good Quality R Series 3 Phase Electric Motor Coaxial Helical Gear Reducer

Features of R series helical gear reducer:
1.Structure: Flange-mounted, foot-mounted, small off-center output and compact.
2. Can connect with various motors, good available capability and reliability, carburized and grinded teeth, low noise, high efficiency.
3.Integral casting housing with good rigidity to enhance the shaft strength and serves life of bearing.
4.Big or small flange type installation and output through solid shaft.
5.Input types: Couple-type motor, input through shaft and input through coupling flange.

Application:
It is applied to many industrial area, such as Metallurgical, mines, lifting, transportation, petrochemical, construction, textile, pharmaceutical, food, environmental, light electric, plastic machine, paper, par ept equipment etc. Especially for Light Industry.

Advantages of R series helical gear reducer:
1. High technical contents.
2. Save space, durable, high bear ability.
3. Low consumption, superior performance, the machine efficiency is up to more than 95%.
4 .Small vibration, low noise, high energy conservation.
1. Housing: Cast Iron
2. Gears: Helical Gears
3. Input Configurations:
Equipped with Electric Motors
Solid Shaft Input
IEC or NEMA Motor Flange
4. Applicable Motors:
Single Phase AC Motor, Three Phase AC Motor
Brake Motors
Inverter Motors
Multi-speed Motors
Explosion-proof Motor
Roller Motor
5. Output Configurations:
Solid Shaft Output

R series gear units are available in the following designs:
Mounting Type:

R(-) RF RS RFS RM
Foot-
mounted
Flange-mounted Foot-mounted and Shaft In-put Flange-mounted and shaft input Specially for stirrer

R series gear units are available in the following designs:
RM… Specially for stirrer drives
R(RF,RX,RXF)…Y… When equipping the user’s motor or the special one ,the flange is required to be connected
RY :Foot-mounted helical gear units with solid shaft
RF…F: Flange-mounted helical gear units with solid shaft
RX…Y: Foot-mounted single-stage helical gear units with solid shaft
Rs: Foot-mounted, shaft input helical gear units with solid shaft
RFS:Flange-mounted ,shaft input helical gear units with solid shaft
RXF…Y:Flange-mounted single-stage helical gear units with solid shaft
R…R…Y:Foot-mounted combinatorial helical gear units with solid shaft
RF…R…Y: Flange-mounted combinatorial helical gear units with solid shaft
RXS Foot-mounted, shaft input single-stage helical gear units with solid shaft
R…RS:Foot-mounted combinatorial, shaft input helical gear units with solid shaft
RRS :Foot-mounted combinatorial, shaft input helical gear units with solid shaft

Technical Data:

Rated Power 0.18KW~160KW
Rated Torque Up to 18000N.m
Gear Arrangement Helical Hardened Gearbox
Input Speed 50HZ or 60HZ of 4Pole,6Pole and 8pole motor
Output Speed 0.16~1571r/min
Ratio 5~264 (Max:13000)

 

Product application :

Pac ept & Delivery:

Our company :
AOKMAN® was founded in 1982, which has more than 36 years in R & D and manufacturing of gearboxes, gears, shaft, motor and spare parts.
We can offer the proper solution for uncountable applications. Our products are widely used in the ranges of metallurgical, steel, mining, pulp and paper, sugar and alcohol market and various other types of machines with a strong presence in the international market.
AOKMAN® has become a reliable supplier, able to supply high quality gearboxes.With 36 years experience, we assure you the utmost reliability and security for both product and services.

Customer visiting:

Our Services:

Pre-sale services 1. Select equipment model.
2.Design and manufacture products according to clients’ special requirement.
3.Train technical personal for clients
Services during selling 1.Pre-check and accept products ahead of delivery.
2. Help clients to draft solving plans.
After-sale services 1.Assist clients to prepare for the first construction scheme.
2. Train the first-line operators.
3.Take initiative to eliminate the trouble rapidly.
4. Provide technical exchanging.

FAQ:
1.Q:What kinds of gearbox can you produce for us?
A:Main products of our company: UDL series speed variator,RV series worm gear reducer, ATA series shaft mounted gearbox, X,B series gear reducer,
P series planetary gearbox and R, S, K, and F series helical-tooth reducer, more
than one hundred models and thousands of specifications
2.Q:Can you make as per custom drawing?
A: Yes, we offer customized service for customers.
3.Q:What is your terms of payment ?
A: 30% ept payment by T/T after signing the contract.70% before delivery
4.Q:What is your MOQ?
A: 1 Set

If you are interested in our product, welcome you contact me.
Our team will support any need you might have.

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

Good  worm and worm wheel animation  manufacturer  China  in Prague Czechia  Quality R Series 3 Phase Electric Motor Coaxial Helical Gear Reducer with top quality

Good  worm and worm wheel animation  manufacturer  China  in Prague Czechia  Quality R Series 3 Phase Electric Motor Coaxial Helical Gear Reducer with top quality

Light cavex worm gearbox near me shop China in Bien Hoa Viet Nam Weight T Series 90 Degree Small Helical Bevel Gear Reducer with top quality

Light  cavex worm gearbox  near me shop  China  in Bien Hoa Viet Nam  Weight T Series 90 Degree Small Helical Bevel Gear Reducer with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

Light Weight T Series 90 Degree Small Helical Bevel Gear Reducer

T Type Gear Reducer Gear box for  change direction

Technical data:
1. Power: 0.37-200 (KW)
2. Output Speed: 11-226RMP,
3. Torque: 400-56000 (N. M)
4. Transmission stage: Three stage

Commercial information:
1. MOQ: 1 set
2. Pac ept method: Polywood
3. Delivery lead time: 10-25 days
4. Price terms: FOB, CIF, EXW
5. Payment method: T/T, 30% in advance, 70% balance before delivery
6. Shipping port: HangZhou
7. OEM: We accept customized products as per your special requirement.
8. Xihu (West Lake) Dis.lines for the Selection: Usually we can select one machine which is suitable for you with some informations from you, such as ratio/motor speed/mounting dimension/ output torque etc.
9. If the minimum order amount is in excess of $10000, there are preferential
 

input power 0.018-96kw
ratio 1-3
permissable torque 11-607N.M
mounting type:  footmounted
usage: change direction

Gearbox Parameters:

Models Input Power Ratio Max. Torque Weight(kg) Output Shaft Dia.(k6)
T2 0.014KW~1.79KW 1~2 11 2 Φ15
T4 0.026KW~4.94KW 1~2 31 10 Φ19
T6 0.037KW~14.9KW 1~3 94 21 Φ25
T7 0.042KW~22KW 1~3 139 32 Φ32
T8 0.064KW~45.6KW 1~3 199 49 Φ40
T10 0.11KW~65.3KW 1~3 288 78 Φ45
T12 0.188KW~96KW 1~3 607 124 Φ50
T16 0.40KW~163KW 1~3 1073 188 Φ60
T20 0.69KW~234KW 1~3 1943 297 Φ72
T25 1.4KW~335KW 1~3 3677 488 Φ85

Ratio: 1:1, 1.5:1, 2:1, 2.5:1, 3:1

Applications:
The products are widely applied in electricity, coal, cement, metallurgy, harbor, agriculture, shipping, lifting, environment protection, stage, logistic, weaving, paper making, light industry, plastics and other regions

1. We accept sample order.
2. We undertake the problems due to quality.
3. We supply detail answers about technical questions.
4. We are the manufacturer so we could supply the products as soon as possible.
5. At the instance of our dear customer, we can do the customized gear boxes for clients.

Product Pictures:

Our company :
AOKMAN® was founded in 1982, which has more than 36 years in R & D and manufacturing of gearboxes, gears, shaft, motor and spare parts.
We can offer the proper solution for uncountable applications. Our products are widely used in the ranges of metallurgical, steel, mining, pulp and paper, sugar and alcohol market and various other types of machines with a strong presence in the international market.
AOKMAN® has become a reliable supplier, able to supply high quality gearboxes.With 36 years experience, we assure you the utmost reliability and security for both product and services.

Customer visiting:

FAQ:
1.Q:What kinds of gearbox can you produce for us?
A:Main products of our company: UDL series speed variator,RV series worm gear reducer, ATA series shaft mounted gearbox, X,B series gear reducer,
P series planetary gearbox and R, S, K, and F series helical-tooth reducer, more
than one hundred models and thousands of specifications
2.Q:Can you make as per custom drawing?
A: Yes, we offer customized service for customers.
3.Q:What is your terms of payment ?
A: 30% ept payment by T/T after signing the contract.70% before delivery
4.Q:What is your MOQ?
A: 1 Set

Welcome to contact us for more detail information and inquiry.
If you have specific parameters and requirement for our gearbox, customization is available.

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

Light  cavex worm gearbox  near me shop  China  in Bien Hoa Viet Nam  Weight T Series 90 Degree Small Helical Bevel Gear Reducer with top quality

Light  cavex worm gearbox  near me shop  China  in Bien Hoa Viet Nam  Weight T Series 90 Degree Small Helical Bevel Gear Reducer with top quality

Smr worm stepper motor shop China in Santa Cruz Bolivia Helical Gear Box Transmission Gear Reducer with top quality

Smr  worm stepper motor  shop  China  in Santa Cruz Bolivia   Helical Gear Box Transmission Gear Reducer with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

SMR Reducer Specification
 
 
1 Output Hub

Standard or alternative hubs with metric bores are available to suit international standard shaft diameters.

2 Precision High Quality Gearing 

Computer Designed Helical Gears, Strong Alloy  Materials  for  High  Load  Capacity, Case  Carburized  for  long  life,  Ground Profile(some intermediate pinions are shaved) Crown tooth Profile, In Conformance  with  ISO  1328-1997,  98% Efficiency  for  Per  Stage,  Smooth  Quiet Operation with Several Teeth in Mesh.

3 Maximum Capacity Housing Design
 
Close  Grain  Cast  Iron  Construction,  Excellent  Vibration  Dampening  &  Shock Resistance Features, Precision Bored and Dowelled to Ensure Accurate In-Line Assembly.

4 Strong Alloy Steel Shafts

Strong Alloy Steel, Hardened, Ground on Journals, Gear Seatings and Extensions, for
Maximum Load and Maximum Torsional Loads. Generous Size Shaft
Keys for Shock Loading and Conform to ISO Standards.

5 Additional Case Lugs Except H and J Gear Case

Eliminates the Need for Critical Tightening of Torque Arm Bolts. Controls Position of
Standard Torque Arm Mounting within Recommended limits.

6 BackStops

Alternative Parts, Antirun Back Device, AreAvailable on all 13:1 and 20:1 Ratio Units and do not recommend for 5:1 Units.

7 Bearings and Oilseals

Bearings are Adequately Proportioned and Conform to ISO Dimension Plan, Readily
Available WorldWide. Oilseals are Double Lipped Garter Spring Type, Ensuring Effective Oil Sealing.

8 Rubberised End Caps

Self Sealing Intermediate Cover Plates, to Standard ISO Housing Dimensions.

9 Torque Arm Assembly

For Easy Adjustment of the Belt.

SIZE : SMR B C D E F G H 

RATIO : 5:1  13:1  20:1 

Contact Me

Welcome to contact William for more details!

 

Model B13/B20 C13/C20 D13/D20 E13/C20 F13/E20 G13/F20 H13/G20 J13/J20
Output(RPM) 10-115 10-110 10-110 10-105 10-105 10-100 10-100 10-100
Power Rating(KW) 0.29-3.11 0.49-4.62 0.82-7.81 1.25-11.55 1.97-17.01 3.11-27.09 4.9-40.7 7.8-60.5
Permissible torque(Nm) 277 468 783 1194 1881 2970 4680 7449

 

Model B5 C5 D5 E5 F5 G5 H5 J5
Output(RPM) 100-400 100-400 100-400 100-400 100-400 100-400 100-400 100-400
Power Rating(KW) 2.68-7.14 4.2-9.66 6.62-15.65 10.29-24.57 15.12-35.91 25.2-59.9 36.2-81.9 62.2-134.2
Permissible torque(Nm) 256 401 632 983 1444 2407 3457 5940

 

 

Dimension(mm) SMR Size
SMR-B SMR-C SMR-D SMR-E SMR-F SMR-G SMR-H SMR-J
Standard size of shaft 30 40 50 55 65 75 85 100
Alternative size of shaft 40 50 55 65 75 85 100 120
Input shaft keyway 6×3.5×50 6×3.5×59 8x4x63 8x4x70 10x5x70 12x5x90 14×5.5×100 16x6x100

 

 

Company Profile

l  The largest manufacturer and exporter of worm gear reducers in Asia.

 

l  Established in 1976, we transformed from a county owned factory to private one in 1996. HangZhou ept POWER TRANSMISSION EQUIPMENT CO.,LTD is our new name since 2001.

 

l  We are the first manufacturer of reducers and gearboxes in China who was given export license since year 1993.

 

l  “Fixedstar” brand gearboxes and reducers are the first owner of CHINA TOP BRAND and Most Famous Trade Mark for reducers.
 

First to achieve ISO9001 and CE Certificate among all manufacturers of gearboxes in China.

   

 

 

As a professional manufacturer of worm gearbox and worm gear reducers in China, we mainly produce reduction gearbox,aluminum case worm gearboxes,arc gear cylindrical worm gearboxes, worm gear reducers, in line helical gearboxes, and cyclo drive reducers, etc. These products feature rational structure, stable performance, and reliable quality, and so on. They are widely used in power, mining, metallurgy, building material, chemical, food, printing, ceramic, paper-making, tobacco, and other industries.

 

 

 

 

We have 600 workers in our factory, which covers 70,000 square meters in HangZhou. We have been ma ept 2,500 units of reducers everyday since 2012. We are proudly exporting 70% of our products to more than 40 countries all over the word. Our customers come from Italy, Germany, USA, Canada, Spain, UK, Mexico, Brazil, Argentina, Turkey, Singapore and other main industrial countries in the world. 30% of them are OEM made for direct manufacturers of other products. 

 

 

 

 

 

 

 

We warmly welcome customers from other parts of the world to visit us. Seeing is believing. We are very confident that after visiting our facility, you will have confidence on our products. We have the latest automatic equipments and experienced workers to ensure the stable quality and large output. We have the most sophisticated technical and engineering team to support most demanding requirement on standard and OEM products.

 

 

 

Loo ept ept to meeting you in HangZhou, China.

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

Smr  worm stepper motor  shop  China  in Santa Cruz Bolivia   Helical Gear Box Transmission Gear Reducer with top quality

Smr  worm stepper motor  shop  China  in Santa Cruz Bolivia   Helical Gear Box Transmission Gear Reducer with top quality

Flange how to make a worm gear in solidworks wholesaler China in Khartoum Sudan Connection Mounted Cycloidal Double Stage Speed Reducer with top quality

Flange  how to make a worm gear in solidworks  wholesaler  China  in Khartoum Sudan  Connection Mounted Cycloidal Double Stage Speed Reducer with top quality

We – EPG Group the biggest worm gearbox, couplings and gears factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828
/

1.Product features

1.1. B/JXJ series cycloid pin wheel reducer the principle of planetary drive with small teeth difference and the new struction of cycloid gear meshing with pin wheel
1.2. Big Ratio:the max ratio of single stage is 87 and double stage is 7569,three stage is 658503
1.3. High efficiency:80% to 85%
1.4. Compact structure,small volume:volume or weight can be reducer by 1/2 compared with the ordinary reducer with same ratio and power
1.5. Stable transmission,low noisse,long life time
1.6. Use for obverse or reverse rotation

2. Technical parameters

Technical parameters: -High speed ratio and efficiency:
1)Single stage: 11,17, 23, 29, 35,43, 59,71,87
2) double stage: 121, 187, 289, 385, 473, 595
 

Model B/JXJ cycloid pin wheel reducer
Base No.Single Stage 0#—6#(single stage),10#—-63#(doubel stage)
Colors Blue or OEM colors
Input Power 0.37-30KW
Ratio 9-87(single stage),81-7569(double stage)
Output Torque 16.96-7100Nm
Maint parts Base,output shaft,cycloid gear,gear pin,gear roller,output shaft ring
Maint parts material GCr15
Lubrication 40# machine oil/CKC460 industrial oil
Efficiency 80%-85%
Rotation Obverse or reverse rotation

 

  
1.Our Services

1.1.We provide 12 months Warranty.
1.2. We have thousands of gearbox reducers. From Input Power 0.06KW to 200KW, Ratio 1.3-289.74, Output speed 0-1095rpm and Output torque 1.4-62800Nm. They can meet your all different requirements for different industries.
1.3. We provide E-catalog or Paper catalog,so you can select the model easily according to your requirements 
1.4.You are welcome to visit our factory to check our products,we can help you to book the hotel or ticket
 
2.Company Information

2.1.Our Company:
The Predecessor for ZheJiang ept Drive CO.,Ltd (originally called HangZhou ept Transmission Machinery CO.,Ltd) State-owned military mould enterpriese which established in 1965.
 
ept is located in HangZhou,China and the factory covers an area of about 25000 square meters.
 
Production Capacity:more than half a million sets of speed reducer per year.

2.2.Our People: 
The company has a strong technical force. It has more than 400 employees at present, including more than 40 engineering technicians and 10 experts and senior engineers enjoying special allowances of the State Council. 
 
2.3. Our Certificates:
Passed ” ISO 9001 International Quality System Certificate”, “International Quality Credit AAA++ Ceritifacte” ,  ” Swiss SGS Certificate”, Iconic Brand in Chinese Electromechanical Industry”, “Famous Brand of ZheJiang Province”, “Non-public Scientific and Technological Enterprise in ZheJiang Province”, “National High and New-tech Enterprise”, “TOP 50 in Chinese Gear Industry” “2011 HangZhou Engineering and Technological R&D Center” and so on.

3. FAQ
 
Q:Are you a trading  company or manufacturer?
A: HangZhou ept Drive Co., Ltd previously was a State-owned ept Mold Factory, a state-owned military industrial enterprise established in 1965. It completed reform in 2002. Since reform, the company has developed rapidly. It took the lead in passing ISO9001 International Quality System Certificate and International Quality Credit AAA++ Certificate in 2004, and Swiss SGS Certificate in 2009. It has won such titles as “Iconic Brand in Chinese Electromechanical Industry”, “Famous Brand of ZheJiang Province”, “Non-public Scientific and Technological Enterprise in ZheJiang Province”, “National High and New-tech Enterprise”, and “Tope 50 in Chinese Gear Industry” successively

Q:Where do you base?
A: We are in HangZhou,ZheJiang ,China. We have two factories,New factory is in Xihu (West Lake) Dis. district,HangZhou,China and the old one is in CHangZhou District,HangZhou,China.

Q:What kinds of gearbox can you produce for us?
A:Main products of our company: JWB-X series mechanical continuously variable transmission, RV series worm gear reducer, B/JXJ cycloidal pin gear speed reducer, NCJ series gear reducer,  and R, F K, S series helical-tooth reducer (SEW), more than one hundred models and thousands of specifications.

Q:What are the application of the gearbox?
A:Products are widely used in ceramic, glass, food, metallurgy, beer & drink, printing and dyeing, textile, petrochemical engineering, warehouse logistics, wood-wor ept machine, environmental protection equipment, printing and packaging, pharmacy, and leather. Products are sold in some countries and regions, such as Europe, America, and Southeast Asia, and it possesses dozens of distributors and after-sale service agents.

Q:What is the material you use?

A1: Aluminum Housing body ( For the RV series worm gearbox Size 30~90)
   
A2: Cast iron(For the RV series worm gearbox, Size 110-150, For the NCJ  & F/R/S/K series helical gear reducer)

Our factory (ZheJiang ept Drive Co., Ltd.) is a  big and famous 6S standard Gearbox factory with around 380 employees since 1965 . We export to South Asia, Southeast Asia, Africa, Middle East, South America, North America, Europe…etc. We offer Gearbox to SIEMENS,ABB,SACMI,BUHLER,MODENA,KEDA…etc. Sincerely hope to establish a win-win business relationship with you.

Expecting to talk about more details with you ! 

Best Wishes

Jacky 
Factory: ZheJiang ept Drive Co., Ltd. (Previous name: HangZhou XingGuang Transmission Machinery)
Add: No.10,Xihu (West Lake) Dis.n Industrial Park, Baini Town, Xihu (West Lake) Dis. District, HangZhou City, ZheJiang Province, China. 
Tel  0086~13083988828 1385811777857175253 ; 
Web: cn ;

/
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.

/

Flange  how to make a worm gear in solidworks  wholesaler  China  in Khartoum Sudan  Connection Mounted Cycloidal Double Stage Speed Reducer with top quality

Flange  how to make a worm gear in solidworks  wholesaler  China  in Khartoum Sudan  Connection Mounted Cycloidal Double Stage Speed Reducer with top quality