Tag Archives: helical bevel gear

China Custom Desboer ND047 Series 47mm Helical Gear Planetary Gearbox for 400W-Ish Servo Motor bevel gearbox

Product Description

Product Description

The ND047 series planetary gearboxes are designed and machined as a single unit with special tapered roller bearings to provide high radial load, high torque, ultra-precision, and small size. The ND series uses in highly rigid industries such as fiber optic laser equipment, floor track equipment, robot seventh axis, Parallel robots (spider hand) machine tools, and rotating arms.
Product Name: High Precision Planetary Reducer
Product Series: ND047 Series
Product features: high torque, high load, ultra-precision, small size
Product Description:
Integrated design concept with high-strength bearings ensure the product itself is durable and efficient
A variety of output ideas such as shaft output, flange and gear are available.
1 arc minute ≤ backlash ≤ 3 arc minutes
Reduction ratios ranging from 3 to 100
Frame design: increases torque and optimizes power transmission
Optimised selection of oil seals: reduces friction and laminate transmission efficiency
Protection class IP65
Warranty: 2 years

Our Advantages

High torque
High load
ultra-precision
Small size

Detailed Photos

Product Parameters

Segment number Single segment
Ratio i 4 5 7 10
Rated output torque Nm 18 20 18 13
Emergency stop torque Nm Three times of Maximum Output Torque
Rated input speed Rpm 5000
Max input speed Rpm 10000
Ultraprecise backlash arcmin /
Precision backlash arcmin ≤3
Standard backlash arcmin ≤5
Torsional rigidity Nm/arcmin 7
Max.bending moment Nm 42.5
Max.axial force N 990
Service life hr 30000(15000 under continuous operation)
Efficiency % ≥97%
Weight kg 0.7
Operating Temperature ºC -10ºC~+90ºC
Lubrication   Synthetic grease
Protection class   IP64
Mounting Position   All directions
Noise level(N1=3000rpm,non-loaded) dB(A) ≤56
Rotary inertia Kg·cm² 0.03

Applicable Industries

 

                              Packaging   Machinery                              Mechanical  Hand                                                         Textile  Machinery

                   Non  Standard  automation                                          Machine  Tool                                                       Printing   Equipment

Certifications

 

 

Company Profile

 

DESBOER (HangZhou) Transmission Technology Co., Ltd. is a subsidiary of DESBOER (China), which is committed to the design, development, customized production and sales of high precision planetary reducer as 1 of the technology company. Our company has over 10 years of design, production and sales experience, the main products are the high precision planetary reducer, gear, rack, etc., with high quality, short delivery period, high cost performance and other advantages to better serve the demand of global customers. It is worth noting that we remove the intermediate link sale from the factory directly to customers, so that you can get the most ideal price and also get our best quality service simultaneously.

 

About Research

In order to strengthen the advantages of products in the international market, the head company in Kyoto, Japan to established KABUSHIKIKAISYA KYOEKI, mainly engaged in the development of DESBOER high precision planetary reducer, high precision of transmission components such as the development work, to provide the most advanced design technology and the most high-quality products for the international market.

 

 

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Motor, Machinery, Marine, Agricultural Machinery, CNC Machine
Function: Change Drive Torque, Speed Changing, Speed Reduction
Layout: Plantery Type
Hardness: Hardened Tooth Surface
Installation: All Directions
Step: Single-Step
Customization:
Available

|

Customized Request

Epicyclic gearbox

Role of an Epicyclic Gearbox in an Automatic Transmission

In an automatic transmission, an epicyclic gearbox, also known as a planetary gearbox, plays a crucial role in providing multiple gear ratios for smooth and efficient shifting. It consists of a sun gear, planet gears, and a ring gear arrangement. By engaging and disengaging different elements of this arrangement, the automatic transmission can achieve various gear ratios without the need for manual shifting. This enables the vehicle to adapt to different driving conditions, optimize fuel efficiency, and enhance overall driving experience.

Epicyclic gearbox

Energy Efficiency Considerations with Epicyclic Gearboxes

Epicyclic gearboxes offer high efficiency due to their compact design and multiple gear meshings. The planetary arrangement allows load distribution among gears, reducing friction and energy losses. Precision manufacturing and quality materials further enhance efficiency. Proper lubrication, minimal backlash, and optimized gear ratios also contribute to energy savings. When selecting epicyclic gearboxes, it’s important to consider efficiency requirements, operating conditions, and the specific application to ensure optimal energy performance.

Epicyclic gearbox

Epicyclic Gearbox: Function and Operation

An epicyclic gearbox, also known as a planetary gearbox, is a complex gear system that consists of multiple gears arranged in a particular configuration. It operates based on the principle of planetary motion, where one or more gears, called planet gears, revolve around a central gear, known as the sun gear. These planet gears are typically mounted on a carrier and engage with an outer ring gear, also called the annulus. This arrangement allows different types of motion conversions, including speed reduction, speed increase, and torque amplification. The planet gears’ interaction with the sun gear and annulus creates various paths for power transmission, enabling versatile applications across industries such as automotive, aerospace, and robotics.

China Custom Desboer ND047 Series 47mm Helical Gear Planetary Gearbox for 400W-Ish Servo Motor   bevel gearbox	China Custom Desboer ND047 Series 47mm Helical Gear Planetary Gearbox for 400W-Ish Servo Motor   bevel gearbox
editor by CX 2024-05-16

China Standard Desboer Ndr 090 Series Double Stage Industrial Transmission Right-Angle Round Output Helical Gear Planetary Gearbox bevel gearbox

Product Description

Product Description

The NDR090 series planetary gearboxes are designed and machined as a single unit with special tapered roller bearings to provide high radial load, high torque, ultra-precision, and small size. The ND series uses in highly rigid industries such as fiber optic laser equipment, floor track equipment, robot seventh axis, Parallel robots (spider hand) machine tools, and rotating arms.
Product Name: High Precision Planetary Reducer
Product Series: NDR090 Series
Product features: high torque, high load, ultra-precision, small size
Product Description:
Integrated design concept with high-strength bearings ensure the product itself is durable and efficient
A variety of output ideas such as shaft output, flange and gear are available.
1 arc minute ≤ backlash ≤ 3 arc minutes
Reduction ratios ranging from 4 to 200
Frame design: increases torque and optimizes power transmission
Optimised selection of oil seals: reduces friction and laminate transmission efficiency
Protection class IP65
Warranty: 2 years

Our Advantages

High torque
High load
Ultra-precision
Small size
Space saving

Detailed Photos

Product Parameters

Segment number Double segment
Ratio i 25 35 40 50 70 100 140 200
Rated output torque Nm 150 130 120 150 130 95 130 95
Emergency stop torque Nm Three times of Maximum Output Torque
Rated input speed Rpm 4000
Max input speed Rpm 8000
Ultraprecise backlash arcmin ≤4
Precision backlash arcmin ≤7
Standard backlash arcmin ≤9
Torsional rigidity Nm/arcmin 31
Max.bending moment Nm 235
Max.axial force N 2850
Service life hr 30000(15000 under continuous operation)
Efficiency % ≥92%
Weight kg 4.5
Operating Temperature ºC -10ºC~+90ºC
Lubrication   Synthetic grease
Protection class   IP64
Mounting Position   All directions
Noise level(N1=3000rpm,non-loaded) dB(A) ≤65
Rotary inertia Kg·cm² 0.35 0.31

 

Applicable Industries

                       Packaging   Machinery                                            Mechanical  Hand                                                     Textile  Machinery
 

                   Non  Standard  automation                                            Machine  Tool                                                         Printing   Equipment  /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Motor, Machinery, Marine, Agricultural Machinery
Function: Change Drive Torque, Speed Changing, Speed Reduction
Layout: Plantery Gearbox
Hardness: Hardened Tooth Surface
Installation: All Directions
Step: Double-Step
Customization:
Available

|

Customized Request

Epicyclic gearbox

Maintaining and Servicing an Epicyclic Gearbox

To maintain and service an epicyclic gearbox, regular inspections, lubrication checks, and cleaning are essential. Follow manufacturer guidelines for recommended lubricants and intervals. Inspect gear teeth for wear, ensure proper alignment of components, and check for leaks. Replace worn or damaged parts promptly. During servicing, disassemble the gearbox, clean components, replace worn bearings, seals, and gaskets, and reassemble following proper torque specifications. Regular maintenance enhances the gearbox’s longevity, performance, and reliability.

Epicyclic gearbox

Energy Efficiency Considerations with Epicyclic Gearboxes

Epicyclic gearboxes offer high efficiency due to their compact design and multiple gear meshings. The planetary arrangement allows load distribution among gears, reducing friction and energy losses. Precision manufacturing and quality materials further enhance efficiency. Proper lubrication, minimal backlash, and optimized gear ratios also contribute to energy savings. When selecting epicyclic gearboxes, it’s important to consider efficiency requirements, operating conditions, and the specific application to ensure optimal energy performance.

Epicyclic gearbox

Differences Between Epicyclic Gearbox and Other Gearbox Types

An epicyclic gearbox, also known as a planetary gearbox, differs from other gearbox types due to its unique arrangement of gears. It features a central sun gear, planet gears that revolve around the sun gear, and an outer ring gear that holds the planet gears. This configuration allows multiple gear meshes to occur simultaneously, leading to various gear reduction possibilities within the same gearbox. This contrasts with traditional gearboxes where only one gear mesh is active at a time. Epicyclic gearboxes offer compactness, high power density, bidirectional motion, and the ability to achieve multiple gear ratios. In contrast, other gearboxes like spur, helical, and bevel gearboxes have their own distinct gear arrangements and limitations. For example, spur gearboxes offer simplicity but may produce more noise, while helical gearboxes provide smoother operation but require more axial space. Bevel gearboxes are used for perpendicular shafts. Each gearbox type has its own advantages and considerations, making the choice dependent on specific application requirements.

China Standard Desboer Ndr 090 Series Double Stage Industrial Transmission Right-Angle Round Output Helical Gear Planetary Gearbox   bevel gearbox	China Standard Desboer Ndr 090 Series Double Stage Industrial Transmission Right-Angle Round Output Helical Gear Planetary Gearbox   bevel gearbox
editor by CX 2024-04-24

China high quality Wps 40 50 60 70 80 100 120 135 147 155 175 200 250 Industrial Transmission Helical Bevel Gear Motor Concrete Mixer Small Planetary Gearbox for Metallurgy near me manufacturer

Product Description


WPS 40 fifty 60 70 eighty 100 one hundred twenty 135 147 a hundred and fifty five one hundred seventy five 200 250 Industrial Transmission Helical Bevel Equipment Motor Concrete Mixer Little Planetary Gearbox For Metallurgy

Our Gearbox has a lot of items for your selecting and we can generate as for every your drawing or sample to fulfill your special ask for
one. Large output torque
2. Risk-free, reputable, economical and durable
three. Stable transmission, quiet operation
four. High carrying capability
5. High modularization design and style, might equip with different outer electricity enter conveniently. Identical equipment variety could equip with a variety of electrical power motor. It is straightforward to recognize the mixture and junction in between every single equipment kind
six. Transmission ratio: Good division, broad scope. The blended machine variety may sort very large transmission ratio, i. E. Output extremely minimal rotary velocity.
seven. Sort of installation: The situation to be mounted is not limited.
8. Large strength, compact the box physique of high power solid iron, gear and gear shaft adapts the gasoline carbonization, quenching and good grinding approach, as a result the bearing ability of unit quantity is higher.
9. Prolonged life: Below the issue of right type decided on(like selecting appropriate procedure parament ) regular procedure and upkeep, the life if main areas pace reducer(apart from donning areas)should not be significantly less than 20000 hours. The putting on areas contain lubricating oil, oil seal and bearing.
ten. Reduced noise: Simply because primary parts of speed reducer are processed, and analyzed critically, therefore the sounds of speed reducer is lower.
11.Our gear box have reached the CZPT global level, can substitute the very same type of goods imported.

HangZhou CZPT Industry Co., Ltd. is a specialized provider of a total range of chains, sprockets, gears, gear racks, gearbox, v belt pulley, timing pulley, V-belts, couplings, machined areas and so on.

Owing to our sincerity in supplying ideal provider to our consumers, comprehending of your needs and overriding sense of responsibility toward filling buying requirements, we have received the have confidence in of customers throughout the world. Possessing amassed precious expertise in cooperating with overseas customers, our goods are marketing well in the American, European, South American and Asian marketplaces.Our items are made by CZPT computerized machinery and equipment. In the meantime, our merchandise are made in accordance to substantial high quality requirements, and complying with the worldwide advanced normal criteria.

With many years’ expertise in this line, we will be reliable by our advantages in aggressive value, 1-time shipping, prompt reaction, on-hand engineering support and good soon after-revenue services.

Moreover, all our creation methods are in compliance with ISO9001 standards. We also can layout and make non-normal items to fulfill customers’ special demands. Good quality and credit score are the bases that make a company alive. We will offer best solutions and higher high quality merchandise with all sincerity. If you require any info or samples, you should contact us and you will have our soon reply.

 

The expression “gearbox” is utilized to refer to any unit that connects a motor to a equipment and consists of a collection of gears, also acknowledged as a gear established. It gets the main enter speed from the motor and changes it to a different output velocity utilizing its gears. Distinct kinds and combos of gears serve certain functions. The types of gears found in gearboxes include spur gears, bevel gears, helical gears, helical gears and worm gears. The functionality efficiency of a gearbox is represented by the gearbox ratio, which is the ratio of the speed of the enter source to the pace of the output supply
Gearboxes can be utilized in a variety of fields of extensive processing, agriculture, chemical processing, oil and gasoline, power transmission and distribution techniques, logistics, warehousing and other industries. Gear reducers are usually used the place increased torque and/or lower rotational speeds are needed, or if electricity wants to be transmitted at alternating angles, this kind of as in proper-angle motors. It can also alter the direction of rotation, as nicely as clockwise and counterclockwise. EP offers a full variety of equipment reducers with appropriate angle worms and large efficiency options. Electrical Gear Aluminum goods are a lightweight and resilient substitute to present day forged iron and metal models and can be stocked or custom created to your specific technical specs. EP gearboxes are lightweight and sturdy, aluminum worm gearboxes are developed for limited areas, including difficult-to-install OEM types as properly as cell tools. Eccentric reducers are available as compact aluminum or forged iron inline reducers with seal existence ratings from 15HP (aluminum) to 40HP (solid iron). In addition to our common and modified regular items, our engineers will operate with you to design and style and develop custom made answers for numerous push technologies to fit your software requirements.

China high quality Wps 40 50 60 70 80 100 120 135 147 155 175 200 250 Industrial Transmission Helical Bevel Gear Motor Concrete Mixer Small Planetary Gearbox for Metallurgy     near me manufacturer

China Professional Speed Worm Reducer Gearbox Speed Reducer Jack Worm Agricultural Planetary Helical Bevel Worm Steering Gear Motor Nmrv Speed Reducer Gearbox near me supplier

Product Description

 

Pace Worm Reducer Gearbox Pace Reducer Jack Worm Agricultural Planetary Helical Bevel Worm Steering Gear Motor Nmrv Speed Reducer Gearbox

Worm Equipment Reducers

A worm reducer is a type of reduction gear that is utilised to change higher motor pace enter into decrease velocity output while also sustaining higher torque. The worm producer is made up of a equipment in the form of a screw meshed into the machine which outputs in the right angle orientation. The worm gearbox is mostly produced of bronze with metal or stainless steel worm. The dimension of the worm reducer is very small and sleek in contrast to other gear reducers which helps make it very helpful for rated motor pace and space troubles.

Employs of Worm Reducers?

The worm reducers are utilized in fields like tuning instruments, elevators, escalators, conveyor belts, medical products, electrical power transmission methods, and stability CZPT to name a couple of.
 

 

1) Aluminum alloy die-casted gearbox
2) Compact construction will save mounting room
three) Extremely correct
four) Operates ahead and backward
5) Large overload capability
six) Secure transmission with lowered vibration and noise

Design:

RV series

Ratio:

7.5,10,fifteen,20,25,30,40,50, sixty, 

Coloration:

Depend on client/Blue/ Silver White

 

 

 

Content:

Housing — Aluminum

Worm Equipment–Cooper(ten-3 #)

Worm Shaft–20CrMnTi with carburizing and quenching, surface hardness is fifty six-62HRC

Shaft-chromium steel-45#

Bearing:

NSK or Chinese higher high quality bearing 

OIL Seal:

Double lip/NOKCFWTCSNAK

Lubricant:

Synthetic & Mineral

Input Electrical power:

.06kw,.09kw,

Usages:

In industrial equipment: Foodstuff stuff, Ceramics, chemical, as effectively as packing, printing, dyeing, woodworking, glass and plastics…..

MOQ:

10pcs

Samples Time:

one-3 days

OEM Accepted:

Can place client emblem

Certification :

TUV,ISO9001

Proper angle gearboxes (worm and planetary gears) are sturdy and can be utilized for 90° turns. An inline reducer (parallel shaft and planetary) is an perfect matching motor with substantial input speeds, or when gear motor performance is critical. Contact our specialized revenue employees to aid figure out which transmission solution is best for you.
Equipment reducers, also named reducers, occur in many transmission variations and are created to multiply torque and minimize enter speed to a preferred output pace. The primary reward of inline gearboxes is their capability to preserve handle in purposes involving large rotational speeds. Their performance and capacity to give substantial input speeds with minimal backlash make inline reducer gearboxes perfect for a vast selection of movement manage applications

China Professional Speed Worm Reducer Gearbox Speed Reducer Jack Worm Agricultural Planetary Helical Bevel Worm Steering Gear Motor Nmrv Speed Reducer Gearbox     near me supplier

China factory Worm Gearbox Reducer Gear Box Speed Reducer Jack Worm Agricultural Planetary Helical Bevel Worm Steering Gear Drive Motor Speed Nmrv Gearbox Reducer CZPT wholesaler

Merchandise Description

  Worm Gearbox Reducer Gear Box Pace Reducer Jack Worm Agricultural Planetary Helical Bevel Worm Steering Equipment Travel Motor Speed Nmrv Gearbox Reducer Manufacture

How does a worm gear perform?
How Worm Gears Perform. An electric motor or motor applies rotational power by means of to the worm. The worm rotates from the wheel, and the screw confront pushes on the tooth of the wheel. The wheel is pushed towards the load.

Can a worm gear go equally directions?
Worm drives can go possibly path, but they want to be created for it. As you can imagine, turning the worm shaft under load will produce a thrust alongside the axis of the screw. Even so, if you reverse the course the route of thrust will reverse as properly.

The standard construction of the worm gear reducer is mainly composed of the worm equipment, the shaft, the bearing, the box entire body and its accessories. Can be divided into 3 basic structural elements: box, worm gear, bearing and shaft combination. The box is the base of all the equipment in the worm equipment reducer. It is an critical portion that supports the mounted shaft areas, assures the appropriate relative placement of the transmission elements and supports the load acting on the reducer. The major operate of the worm equipment is to transmit the movement and power amongst the 2 staggered shafts.
 

 

Gearboxes and reducers are enclosed mechanical reduction devices typically utilized in modern automatic control programs to command torque from your motors and achieve other movement-associated jobs. A gearbox enables you to enhance torque even though lowering the speed of your key mover output shaft. The output shaft of the gearbox rotates at a slower speed than the input shaft. This generates a mechanical edge, growing torque. Conversely, your gearbox can be established in reverse, offering enhanced shaft pace and reduced torque. Two typical transmission configurations are straight and right angle. On-line versions generally consist of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic generators. Proper-angle patterns typically use worm or helical equipment drives, nevertheless, hybrid drives are also offered. Gearmotors blend an enclosed gear set with an electrical motor to improve torque and efficiency although reducing speed. While added friction, inertia, or sharp load modifications for brief-term procedure of the actuator can trigger difficulties, they give a extended operating life by protecting against overloading. A variety of equipment ratios, speeds and torques are available to assist optimize overall performance and minimize potential troubles. Browse to uncover the proper gearbox and reducer for your automation undertaking.
We are skilled transmission sellers and supply a extensive selection of transmissions, an important component of several drive programs. Gearboxes can be utilized to reduce or boost speed, increase torque, reverse or alter the path of a drive shaft. Gearboxes are also known as equipment drives, pace reducers, gear motors, pace reducers and gear reducers.

China factory Worm Gearbox Reducer Gear Box Speed Reducer Jack Worm Agricultural Planetary Helical Bevel Worm Steering Gear Drive Motor Speed Nmrv Gearbox Reducer CZPT     wholesaler

China factory Transmission Motor Gearbox Unit Wp Nmrv Swl Screw Drive Lifts Stepper Cyclo Cycloidal Extruder Helical Planetary Bevel Worm Speed Variator Gear Reducer Gearbox with Best Sales

Solution Description

Transmission Motor Gearbox Unit Wp Nmrv Swl Screw Drive Lifts Stepper Cyclo Cycloidal Extruder Helical Planetary Bevel Worm Velocity Variator Gear Reducer Gearbox

Attributes

1. Compact construction and easy assembly
two. Broad pace ranges and substantial torque
3. Reduced noise, good sealing efficiency, higher effectiveness
four. Stable and secure, prolonged life time, common
5. Multi-construction, different assembling techniques

 

Solution Photos

 

Item Description

 

                                                                                      ANG Helical Gear Reducer
Product R17 ~ 187, F37-177, K37-187, S37-ninety seven, HB01-26
Input electrical power .06kw ~ 5000kw
Enter speed 750rpm ~ 3000rpm
Reduction ratio 1/1.3 ~ 1/27000
Enter motor AC (1 stage or 3 section) / DC / BLDC motor
Set up kind Foot / Sound shaft / Hollow shaft / Output flange…
Effectiveness 94% ~ ninety eight % for R F K series
Substance of housing die-cast aluminum / Cast iron / Stainless steel
Precision of gear Precise grinding, course six
Warmth treatment Carburizing and quenching
Equipment Brake / Flange / Motor adapter / Torque arm …

Rewards

 

 

FAQ

 

Q: Can you make the gearbox with customization?
A: Of course, we can customise for every your request, like energy, voltage, speed, shaft dimensions, flange, terminal box, IP grade, and so forth.

Q: Do you provide samples?
A: Indeed. The sample is available for testing.

Q: What is your MOQ?
A: It is 1pcs for the starting of our organization.

Q: What is your lead time?
A: Normal product need 5-30days, a little bit more time for personalized merchandise.

Q: Do you offer technological assistance?
A: Yes. Our business have design and style and advancement team, we can provide technological support if you
need to have.

Q: How to ship to us?
A: It is offered by air, or by sea, or by teach.

Q: How to pay out the income?
A: T/T and L/C are chosen, with a different forex, which includes USD, EUR, RMB, and so on.

Q: How can I know the product is suited for me?
A: >1ST validate drawing and specification >2nd examination sample >3rd begin mass creation.

Q: Can I arrive to your firm to visit?
A: Sure, you are welcome to go to us at any time.

Q: How shall we speak to you?
A: You can send inquiry directly, and we will answer within 24 hrs.
 

Gear reducers, also called reducers, come in several transmission variations and are made to multiply torque and decrease input velocity to a wanted output speed. The primary advantage of inline gearboxes is their potential to maintain control in applications involving high rotational speeds. Their performance and ability to give higher input speeds with small backlash make inline reducer gearboxes best for a vast range of movement control purposes
Gearboxes and reducers are enclosed mechanical reduction gadgets commonly employed in present day automated manage methods to command torque from your motors and attain other motion-relevant responsibilities. A gearbox allows you to improve torque although decreasing the velocity of your prime mover output shaft. The output shaft of the gearbox rotates at a slower pace than the input shaft. This creates a mechanical gain, increasing torque. Conversely, your gearbox can be established in reverse, delivering increased shaft velocity and diminished torque. Two common transmission configurations are straight and appropriate angle. On the internet models typically consist of helical or spur gears, planetary gears, cycloidal mechanisms, or harmonic turbines. Proper-angle types typically use worm or helical equipment drives, even so, hybrid drives are also obtainable. Gearmotors combine an enclosed equipment established with an electrical motor to improve torque and performance whilst lowering pace. Whilst extra friction, inertia, or sharp load alterations for short-phrase operation of the actuator can result in troubles, they provide a prolonged functioning existence by preventing overloading. Numerous equipment ratios, speeds and torques are available to support improve efficiency and lessen prospective problems. Browse to locate the right gearbox and reducer for your automation task.

China factory Transmission Motor Gearbox Unit Wp Nmrv Swl Screw Drive Lifts Stepper Cyclo Cycloidal Extruder Helical Planetary Bevel Worm Speed Variator Gear Reducer Gearbox     with Best Sales