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This section provides an overview for planetary gear speed reducers as well as their applications and principles. Also, please take a look at the list of 40 planetary gear speed reducer manufacturers and their company rankings. Here are the top-ranked planetary gear speed reducer companies as of December, 2024: 1.NEWSTART MOTION INDUSTRIES LTD., 2.Harmonic Drive LLC, 3.Winsmith.
Table of Contents
A planetary gear speed reducer is a device that uses planetary gears to reduce the speed of an input shaft to a lower output speed. It comprises a central sun gear, multiple planetary gears that orbit the sun gear, an internal ring gear that encloses the planetary gears, and a carrier that connects the planetary gears. This arrangement allows for a compact design with input and output shafts on the same axis, accommodating multiple planetary gears for efficient power distribution.
Planetary gear speed reducers are integral to machinery requiring high power transmission in a compact space. They are prevalent in automotive transmissions, particularly in torque converter automatic transmissions and 4-wheel drive vehicle center differentials. Beyond automotive applications, they power industrial machines like shield excavators and gantry cranes. Notably, they also facilitate the unique transmission system of the Toyota Prius, dividing engine output between driving and power generation.
The operation of a planetary gear speed reducer is based on the fixed internal ring gear and the rotation of the sun gear, which drives the planetary gears in an orbital motion. This motion, taken as the output, allows the device to function as a reducer. The carrier, moving coaxially with the input shaft, distributes the input force among multiple planetary gears, enabling the transmission of substantial power in a compact form.
Planetary gear speed reducers are categorized by the type of gears they employ. Innovations include roller-based systems, trochoidal curved gears, and mechanisms linking the outer diameter with rollers flexibly. Each variant offers unique advantages, tailored to specific operational requirements.
While planetary gear speed reducers excel in delivering high reduction ratios, substantial torque capacity, and potential use as speed increasers in a compact, low-noise package, they also present challenges. Their complex design demands precision in assembly and incurs higher costs and maintenance needs. Choosing a planetary gear reducer requires careful consideration of its benefits and limitations relative to the intended application.
Designing a planetary gear speed reducer necessitates advanced technical skills due to its intricate structure. Considerations include managing the outer diameter based on the reduction ratio and ensuring no interference between the sun and planetary gears.
The reduction ratio of a planetary gear speed reducer is influenced by the gear tooth counts of the sun and planetary gears. Achieving higher reduction ratios involves balancing the size of these gears, mindful of the structural arrangement and power transmission efficacy. Additionally, the orbital motion of the planetary gears introduces centrifugal forces that must be meticulously managed to prevent interference with the internal gears.
*Including some distributors, etc.
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Harmonic Drive LLC, established in 1960, is a manufacturer of precision servo actuators, gearheads, and gear component sets, headquartered in Massachusetts. They offer customized motion control solutions for companies of all sizes, with a strong emphasis on engineering and production. Their strain wave gears and Harmonic Planetary gears are known for their high precision and zero backlash, playing critical roles in applications like robotics, aerospace, medical equipment, and more. With over 60 years of experience, Harmonic Drive has ISO 9001 and AS9100 certifications. They have manufacturing facilities in the US, Japan, and Germany.
Boston Gear is a North Carolina-based manufacturer and supplier of power transmission components including bearings, clutches, enclosed gear drives, and AC/DC motors. Founded in 1877, the company offers more than 30,000 standard products, as well as the option to create custom-engineered solutions. The company is ISO 9001 certified, with clients in the mining and aggregate, energy, aerospace, defense, construction, and agricultural industries. Boston Gear components are also used in packaging and robotics operations by companies such as Disney and Coca-Cola.
Auburn Gear Inc., founded in 2013 and headquartered in Indiana, the United States, is an ISO 9001:2015 certified manufacturer specializing in automotive and industrial power transmission components. The company's primary product categories include automotive differential and driveline systems, industrial gearboxes and drivetrain systems, custom engineering solutions, gears, and axles and wheel ends. The company's products are used in the automotive and industrial sectors, enhancing vehicle performance, improving power transmission in industrial equipment, and offering customized solutions to address specific requirements.
Ondrives US, founded in Freeport, NY, in 2011 is a manufacturer of standard, modified, and custom precision gears, gearboxes, pulleys and mechanical components. The company's product portfolio includes gear hobblers, gear shapers, CNC vertical mills, bar fed CNC lathes and laser engraving. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company also provides services including two dimensional drawings of 3D CAD models, product selection, national distribution and customer support.
Wittenstein, headquartered in Illinois, USA, is a manufacturer of motion control systems for industrial, energy, aerospace, simulation and other industries. The company's product portfolio include planetary gearheads, servo-right-angle gearheads, linear systems, motors and control loading systems. It offers customized products, systems and solutions for highly dynamic motion, maximum-precise positioning and smart networking for mechatronic drive technology. It partners with companies in the development, design and manufacture of machines for plant and process automation. The company offers resources like software for drive system optimization and CAD POINT for performance and product data as well as engineering services and consultation.
Pelonis Technologies, Inc. was founded in the 1990s in Exton, Pennsylvania. Pelonis technologies is a manufacturer and distributor of air movement technologies and specialty heating products for commercial and industrial use. Pelonis Technologies is ISO 9000 and ISO 14000 certified. Pelonis Technologies has 3 main standard product segments in cooling, heating, and motors & motion control. Cooling products include fans, blowers, micro cooling, and automotive fans & blowers. Heating products include PTC heaters, temperature controllers, and immersion heaters. Motors & motion control include micro, planetary, AC, and medical micro motors. Custom solutions include AC and DC fans and blowers.
Bearing Service, Inc., established in 1943 and located in Michigan, United States, is a supplier of bearing, power transmission, and related products. The company sources ball bearings, needle bearings, plastic sleeve bearings, chains and sprockets, as well as couplings. It also provides ball bushings and shafting, seals, accessories, and ball screws. Its ball bearings have the purpose of reducing rotational friction and supporting load and are offered with performance-enhancing options such as metal shields to minimize contamination and retain lubrication.
Newstart Motion Industries Ltd. is a manufacturer of gearboxes and gearbox components established in 2006 and based in Sheridan, Wyoming, USA. The company’s products include planetary gearboxes for precision applications such as in the medical or aerospace industries, and planetary servo gearheads for automation engineering or mechanical engineering. It also offers strain wave reducers for CNC automation, and spiral bevel gearboxes for angular power transmission. The company mainly serves clients in industrial manufacturing, processing, and packaging operations.
HDT Srl, established in 1969 and based in Monte di Malo, India, is a manufacturer of drives and brushless motors for industrial automation. The company has a DC wound field motor line with square section stator, brushless line with rare earth brushless motors with the respective digital drives, permanent magnet line consisting of compact DC motors and the respective drives for simple and economic automation, and planetary gear line of motors that can be customized to customer requirements. The company also offers a software tool designed to calibrate servo drive and motor via Microsoft Windows operating systems.
Sumitomo Heavy Industries Gearbox Co., Ltd. founded in September 1916 and located in Osaka, Japan, is a manufacturer and supplier of gears and related equipment. The company's product range includes SEISA Couplings, Drive Units, and Condition Monitoring Systems (CMS). These products are vital for ensuring efficient transmission in machinery, specifically for high-speed rotation and powerful transmission. It serves the cement, chemical, mining, paper, and power generation industries. Additionally, the company offers services that emphasize product development, technical support, and maintenance.
Chuanhe Power Technology Co.,Ltd, founded in the United States in 1985, is a manufacturer of machines, press brakes, hydraulic shears, and mechanical shears. The company offers state-of-the-art press brakes used for the precise bending and shaping of metal components, making them ideal for various applications in metalworking and custom machinery solutions that cater to specific requirements. The company sells its products throughout North America and also offers services such as maintenance, spare part support, and technical service.
SGR Heavy Industry Machinery Co., Ltd., established in 1996 and headquartered in Shanghai, China, is a manufacturer that specializes in gearboxes and motors. The company's product line includes planetary gearboxes, double-enveloping worm gearboxes, worm gearboxes, and bevel gearboxes. It also offers cycloidal reducers, helical gearboxes, variators, and gear motors. Its planetary gearboxes have a higher service lifespan than traditional gearboxes for the same amount of load capacity. The company has achieved ISO 9001:2015 certification for its quality management systems. It serves various industries such as metallurgy, minerals, architecture, shipbuilding, and petroleum.
SESAME MOTOR CORP., a company founded in 1990 and headquartered in Taichung, Taiwan, is a manufacturer of precision motors and motion control solutions. The company specializes in providing stepper motors, servo motors, and planetary gearboxes for various industries, including robotics, automation, and manufacturing. Their products are known for their efficiency, and precise control, enabling precise motion in a wide range of applications. They also provide customer services, offering technical support, customization options, and communication to meet clients’ needs.
NER GROUP CO., established in 1993, is a China-based manufacturer and supplier specializing in industrial gearboxes and electric motors. The company’s product portfolio includes cycloidal geared motors, cycloidal gear motor reducers, helical-worm shaft gear motors, electromotors, and more. These power transmission products find diverse applications in industries such as mining, energy, construction, pharmaceuticals, and food sectors. The company holds ISO9001:2000, ISO14001:2004, and OHSAS18001:1999 certifications and has a vast network of branches across China, serving clients locally and worldwide.
SAKANISHI SEIKI Co., Ltd., established in 1945 and based in Hachioji, Tokyo, Japan, is a manufacturer specializing in the design and assembly of precision speed reducers and mechanical units. Its product offerings includes the V Series for applications, C Series for low-noise reducers, and custom-built gear products. Its capabilities include machining and assembly of precision components, and does distinction of high-mix, low-volume production. Its products plays a crucial role in delivering tailored mechanical solutions and precision gear technology.
Hangzhou Ever-power Transmission Co., Ltd., established in 2006 in China, operates as an exporter, manufacturer, and supplier of speed reducers, planetary gearboxes, and helical gearboxes. The company specializes in producing customized variators, geared motors, electric motors, and other hydraulic products based on customers' drawings. It produces various types of mechanical and hydraulic transmissions, such as spiral and helical reducers, automatic transmissions, and drive shafts. Remarkably, 80% of its products are internationally exported, catering to markets including the United States, Germany, Japan, Australia, the Middle East, and other regions.
Matex Co., Ltd., established in 1921 and headquartered in Yao City, Osaka, Japan, is a manufacturer of precision engineering solutions. The company offers planetary gear reducers, electric actuators, injection molding products, plastic injection molding, and precision metal processing. These products cater to a multiple industries, such as robotics, automotive, and industrial machinery, and are used in applications ranging from home appliances to industrial facilities. It upholds rigorous quality standards, which are underscored by its possession of ISO 9001 and ISO 14001 certifications.
Konic Gearbox, established in 2002 and headquartered in Dalian, Liaoning, China, is a manufacturer of gearboxes for drive train systems. The company's main products include winch gearboxes, wind turbine gearboxes, and custom gear shafts. It offers a range of gearbox types, including planetary, worm, and helical. These products are used in numerous machines, equipment, and vehicles, including concrete mixers, cranes, and mining machines. The company's services include private label manufacturing, and it also offers full OEM services.
Started in 2007, with Head Quarter in Andhra Pradesh, India, Plant Automation Technology is a global B2B media/marketing firm that offers services to companies in the automation and manufacturing industry. They provide email marketing, event marketing, social media marketing, search engine optimization, and e-newsletters. This platform unites buyers, sellers, manufacturers, and service providers in one place and they are also available for comprehensive profile listing, research analysis, marketing strategies, banner ads, product specs, and. interviews/experts talk. They provide the products in different categories and they conduct trade shows, conferences/workshops, and industrial summits.
Rossi S.p.A., founded in 1953 in Italy, is a manufacturer that specializes in providing solutions for industrial power transmissions. The company produces gear reducers, motion control components, gear motors, and electric motors designed for heavy-duty use in chemical, construction, food and beverage, marine, mining, and other industries. It maintains multiple certifications, including ISO 14001, ISO 145001, and ISO 9001, and serves businesses in more than 90 countries through its global network of distribution partners and service centers.
Kavitsu Transmissions Pvt. Ltd., founded in 1992 in Satara, India, is a manufacturer and supplier specializing in planetary speed reducers, industrial gearboxes and torque limiters. The company’s product portfolio includes bevel gearboxes, worm gearboxes, geared motors, electric motors, and slew bearings. These products serve diverse industries such as paper, steel, chemical, textile, mining, and packaging. The company serves local and international markets including North and South America, Europe, Asia, Africa and the Middle East.
Sumitomo Heavy Industries, Ltd. was founded in 1934 and is headquartered in Tokyo, Japan, as an all-around machinery manufacturer. The company manufactures many types of machinery, including general industrial machinery, precision machinery, building machinery, ships, environmental plant facilities, and other related products. The delivery of gearbox support by Sumitomo extends beyond the first installation phase. Proficient professionals in the aftermarket field are consistently accessible to address concerns related to gearbox repair, maintenance inquiries, and any other operational requirements.
Hsiang Neng DC Micro Motor Manufacturing Corporation, established in 1987 in Changhua, Taiwan, is a manufacturer and supplier of precise DC Motors and Gearboxes. The company's product range includes Precision DC Gear Motors, Planetary Gear Motors, Worm Gear Motors, Treadmill Motors, and Linear Actuator Motors. These motors are integral components in various machinery and equipment across multiple industries. It also serves industries such as automation, fitness equipment manufacturing, and general electronics, among others. Beyond its product manufacturing, the company offers custom motor design, original design manufacturing (ODM) solutions, original equipment manufacturing (OEM) services, and global shipping.
Ningbo Planetary Gearbox, established in 1988, is an established manufacturer and supplier of gearsets, with its headquarters located in Zhejiang, China. The gears manufactured by the business have multipurpose uses, including but not limited to winches, tracked vehicles, wheeled vehicles, and wind turbines. Additionally, the company maintains a tight working relationship with each customer, offering services such as consultation, training, delivery of components, and support. In addition, it provides both superior transmitter systems and optimal transmitter solutions for various machines and applications.
Parker Hannifin Corporation was founded in 1917 and is headquartered in Cleveland, Ohio. Parker Hannifin is a manufacturer and distributor of motion and control technologies and systems for markets including mobile, industrial, and aerospace. Parker-Hannifin operates through two segments: diversified industrial and aerospace systems. Diversified industrial offers sealing, shielding, thermal products and systems, adhesives, diagnostics solutions, and hydraulic, pneumatic, and elctromechanical components and systems or industrial machinery and equipment. The aerospace segment offers control actuation systems and components, engine exhaust nozzles and assemblies, pilot controls, as well as others.
Winsmith, founded by Winfield H. Smith in 1901, is a manufacturer and supplier of worm, planetary, planocentric, epicyclical, and helical gearing technologies headquartered in Springville, New York, with an additional plant in Flowery Branch, Georgia. The company’s production line is segmented into swing drive solutions, motion control products, inline, right angle, and custom gearings. Its products are used for motion control and gear reduction in packaging, food processing, hydro-flow generation, broadband satellite communications, and motion control applications.
Endeavor Business Media, LLC., founded in Nashville, Tennessee, is a B2B Media Company that provides monthly newsletters to monthly magazines. The company's product portfolio includes 2B Media, B2B Advertising, Digital Media, Events, and Lead Generation. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company also provides marketing services such as Advertising, Content Marketing, research and development and Marketing Services.
Ranking as of December 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | NEWSTART MOTION INDUSTRIES LTD. |
13.3%
|
2 | Harmonic Drive LLC |
7.3%
|
3 | Winsmith |
4.4%
|
4 | Pelonis Technologies, Inc. |
3.8%
|
5 | Hsiang Neng DC Micro Motor Manufacturing Corporation |
3.8%
|
6 | Ningbo Planetary gearbox |
3.5%
|
7 | SAKANISHI SEIKI Co.,Ltd. |
3.5%
|
8 | Auburn Gear Inc. |
3.2%
|
9 | ondrives us |
3.2%
|
10 | CARSON MFG. INC. |
2.9%
|
Derivation Method
The ranking is calculated based on the click share within the planetary gear speed reducer page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
United States of America | 11 | 36.7% |
China | 9 | 30.0% |
Japan | 4 | 13.3% |
Taiwan | 3 | 10.0% |
Italy | 1 | 3.3% |
France | 1 | 3.3% |
India | 1 | 3.3% |
254 products found
254 products
Shindensha Co., Ltd.
440+ people viewing
Last viewed: 12 hours ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
5 models listed
Nidek Drive Technology Co., Ltd.
60+ people viewing
Last viewed: 22 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Shindensha Co., Ltd.
270+ people viewing
Last viewed: 5 hours ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
5 models listed
Nidek Drive Technology Co., Ltd.
60+ people viewing
Last viewed: 2 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Shindensha Co., Ltd.
250+ people viewing
Last viewed: 9 hours ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
5 models listed
Nidek Drive Technology Co., Ltd.
60+ people viewing
Last viewed: 3 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Shindensha Co., Ltd.
360+ people viewing
Last viewed: 8 hours ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
5 models listed
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 20 minutes ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Meiwa Kosakusho Co., Ltd.
100+ people viewing
Last viewed: 10 hours ago
Very Fast Response
We will design and manufacture the optimal speed reducer according to the customer's specifications. We can consult with you to suit your applicati...
Shindensha Co., Ltd.
300+ people viewing
Last viewed: 3 hours ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
5 models listed
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 15 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
CITIZEN MICRO CO.,LTD.
20+ people viewing
Last viewed: 6 hours ago
Fast Response
The V series has a simple structure with high torque and sintered parts through optimal design.
Shindensha Co., Ltd.
210+ people viewing
Last viewed: 36 minutes ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
5 models listed
Nidek Drive Technology Co., Ltd.
60+ people viewing
Last viewed: 18 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Shindensha Co., Ltd.
260+ people viewing
Last viewed: 6 hours ago
Standard Response
This is a reduction gear consisting of a sun gear, multiple planetary gears rotating around it, and an internal gear placed outside of the sun gear...
4 models listed
ORIM VEXTA
800+ people viewing
Last viewed: 55 minutes ago
Fast Response
【Product Summary】 It is a set of HPN series made by Harmonic Drive Systems Co., Ltd. and an AZ series made by Oriental Motor Co., Ltd. (The mot...
10 models listed
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 4 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Nidek Drive Technology Co., Ltd.
70+ people viewing
Last viewed: 3 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 12 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 22 hours ago
Fast Response
■Small, lightweight, and compact precision reducer Used in various situations including robots and machine tools ■Features For drive parts that re...
Fuji Electrode Industry Co., Ltd.
20+ people viewing
Last viewed: 2 hours ago
Fast Response
5.0 Company Review
Ideal for positioning due to its compact size, high rigidity, and low backlash. A planetary gear reducer for servo motors with excellent cost perfo...
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 23 hours ago
Fast Response
■Reducer unit for mechanical press (reducer, flywheel, dry clutch brake) [Manufactured by German company DESCH] Application mechanical press ■Feat...
Fuji Electrode Industry Co., Ltd.
10+ people viewing
Last viewed: 10 hours ago
Fast Response
5.0 Company Review
Ideal for positioning due to its compact size, high rigidity, and low backlash. Compact type planetary gear reducer for servo motors. ■Product ran...
Fuji Electrode Industry Co., Ltd.
20+ people viewing
Last viewed: 1 hour ago
Fast Response
5.0 Company Review
Ideal for positioning due to its compact size, high rigidity, and low backlash. Planetary gear reducer for servo motors using large capacity helica...
Fuji Electrode Industry Co., Ltd.
20+ people viewing
Last viewed: 2 hours ago
Fast Response
5.0 Company Review
Ideal for positioning due to its compact size, high rigidity, and low backlash. Planetary gear reducer for orthogonal shaft type servo motors. ■Pr...
Fuji Electrode Industry Co., Ltd.
30+ people viewing
Last viewed: 4 hours ago
Fast Response
5.0 Company Review
Planetary gear reducer with high torque yet compact in radial direction. The overall length has also been significantly shortened. ■Production ran...
Nidek Drive Technology Co., Ltd.
50+ people viewing
Last viewed: 8 hours ago
Fast Response
■ Drive unit of reducer for servo press [Manufactured by German company DESCH] Application Servo Press ■Features High reduction ratio, high power,...