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This section provides an overview for gears as well as their applications and principles. Also, please take a look at the list of 35 gear manufacturers and their company rankings. Here are the top-ranked gear companies as of December, 2024: 1.Linn Gear Co, 2.Stock Drive Products/Sterling Instrument - SDP/SI, 3.Red Lion.
Table of Contents
Gears are mechanical components that transmit power through toothed profiles. They enable power transmission horizontally or vertically, depending on the tooth configuration. Unlike V-belts, gears prevent slippage, making them crucial for applications where precise timing is essential. By varying gear sizes and tooth counts, it's possible to adjust rotational speeds, enabling a small motor to drive a large machine efficiently.
Gears are ubiquitous in daily life, particularly in power-driven equipment. Common examples include vehicles like cars, motorcycles, and bicycles, as well as household appliances such as clocks, fans, and vacuum cleaners. They are also integral to industrial machinery, including turbines in power plants, blowers, and wind generators. In bicycles, for instance, the gear system, known as a sprocket, allows for speed adjustment by changing gears, directly influencing pedal rotation and movement.
Gears ensure reliable power transmission without slippage, allowing for precise timing adjustments. However, gear teeth can wear out over time, increasing the gap known as backlash. This can lead to noise or malfunction, especially under fluctuating loads or frequent starts and stops, necessitating regular maintenance. Gears enable acceleration and deceleration adjustments through tooth number and size variations, commonly seen in reduction gears. This ability allows a small motor to operate large machinery, reducing costs related to the motor, energy consumption, maintenance, and equipment size. Proper lubrication with oil or grease is required to minimize wear and extend gear life, with the lubrication method chosen based on equipment specifications and installation location.
Gears come in various shapes, allowing for parallel, intersecting, or staggered shaft arrangements when paired.
Featuring teeth parallel to the rotation axis, spur gears are widely used for their manufacturing simplicity and effectiveness in power transmission.
A spur gear variant with internal teeth, designed to mesh with smaller diameter gears.
Created by angling the teeth of a spur gear into a helical formation, providing smoother operation.
Paired with a helical gear, it transmits power between two non-parallel axes.
Consists of two helical gears with opposite helix angles, counteracting axial thrust.
Conically shaped with teeth on the conical surface, used for transmitting power between intersecting axes.
A bevel gear variant with teeth perpendicular to the rotation axis, resembling a crown.
Combines a worm and worm wheel at right angles for compact, high-ratio gear reduction.
Features teeth on a spherical surface, allowing for perpendicular axis operation.
Engages with a roller chain to transmit rotation, differing from typical gear mechanisms as it does not involve meshing gears.
Gear teeth are defined by mathematically calculated curves known as tooth profile curves, categorized into involute, cycloid, and trochoid profiles.
Defined by an involute curve, this profile ensures consistent meshing even with slight center distance variations, favored for its manufacturability and efficiency.
Characterized by minimal tooth interference and uniform sliding, cycloid profiles are challenging to manufacture but are utilized in precision mechanisms like clocks.
Based on a trochoidal curve, this profile is applied in internal gear pumps for its efficiency and reliability.
*Including some distributors, etc.
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SDP/SI was founded in 1950 and is situated in New Hyde Park, New York. SDPP/SI is a manufacturer of precision gears and high-quality mechanical components used in the aerospace, industrial manufacturing, medical technology, and robotics fields. The company manufactures parts in a variety of materials including alloy steel, stainless steel, bronze, brass, nylon, and titanium. The company also provides coating services such as heat treating, zinc plating, and painting. Additional custom options are available including manufacturing to customer drawings and specifications.
Rexnord, is a Regal Rexnord Brand, founded in 1948, and is a manufacturer of industrial lead products for the toughest applications. The products include bearings, conveying solutions, couplings, gears, industrial chains, and PT drive components. Smart solutions include smart condition monitoring systems, smart tags, and digital productivity platforms for use in aerospace, mining, beverage & food, energy, and marine markets. The Milwauke, Wi company offers services such as coupling re-certification, gap walk, gearbox repair & upgrade, custom gears & drives, and installation & rebuild services.
Red Lion was founded in 1972 and headquartered in York, Pennsylvania as part of Spectris, PLC, headquartered in Egham, England. The company serves manufacturing, oil & gas, alternative energy, transportation, and water industries with products for their industrial automation and industrial networking needs. The company’s industrial automation division creates controllers, secure remote access platforms, panel meters, and process control devices. The industrial networking division offers ethernet devices, IIoT gateways and routers, and communication converters.
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.
Linn Gear, established in 1954 and based in Oregon, United States, is a manufacturer and supplier of stock and custom mechanical power transmission components for industrial applications. The company’s product range includes a variety of gears, such as spur gears and change gears, along with components like change gear bushings and miter gears. Additionally, they produce sprockets and related products, serving the industrial machinery sector. The company stocks finished goods available for immediate shipment as well as semi-finished goods that can be customized to meet customer specifications and requirements.
Cone Drive was founded in 1925 and is a manufacturer of gearboxes and motion control technology located in Traverse City, Michigan. The company’s product line includes worm gears, worm gearboxes, slew bearings, slew drives and harmonic gearing. Its products are applicable for solar energy, aerospace, metals, mining, and various other industries. Its sales representatives are available in America, Africa, Asia, Australia, and Europe. Its quality management system is certified with ISO 9001.
QTC METRIC GEARS is a reputable manufacturer and supplier of quality metric gears, located in the United States since 1964. QTC METRIC GEARS has a rich history of providing a wide range of precision gears that cater to various industries, including automotive, aerospace, robotics, and manufacturing. Their devotion to quality and precision ensures that their gears meet rigorous standards and offer dependable performance. With a aim to deliver products and exceed customer expectations, QTC METRIC GEARS prioritizes customization, timely delivery, and excellent customer service.
Martin Sprocket & Gear, Inc. (MSG) is an Arlington, Texas-based manufacturer and supplier of power transmission products, material handlers, and industrial hand tools. Founded in 1951, the company primarily serves clients in the pulp and paper, petrochemical, automotive, and agriculture industries. The company produces various products including conveyors, sprockets, sheaves, bushings, and custom products for client companies like John Deere and General Electric. MSG has over thirty operating plants across the United States, with retail locations and storage facilities on three continents.
Gear Motions is a custom gear manufacturer for global OEMs. Founded in 1960 and headquartered in Syracuse, New York, with additional locations in Buffalo and Oliver Springs, Gear Motions has grown significantly since its founding. Initially a ten-man company serving primarily in the New England Area, they have since expanded through acquisitions of companies such as Nixon Gear, Gear Supply and Broaching, and Pro-Gear Co Inc. The company provides custom gear solutions for various custom and precision applications, offering products such as ground helical gears, spur gears, pump gears, timing pulleys, shafts and splines.
Circle Gear & Machine Co., Inc., established in 1951 and based in Illinois, USA, is a manufacturer of gears and gearboxes. The company manufactures a range of gears including bevel, helical and worm gear for automotive, construction, chemical and other industries. It provides reverse engineering for gear and gear boxes, from worn samples, prints or sketches, along with rebuild, repair and emergency services. The company has a quality management system in compliance with ISO 9001:2015, and has a complete inspection lab with CMM(Coordinate Measuring Machine).
Grob, Inc., established in 1929, and headquartered in Grafton, Wisconsin, is a manufacturer of custom metalworking equipment and components. Their custom products, includes band saws, cold rolled steel products, blade welders, heat exchangers, and custom machine tools, that cater to industries like industrial manufacturing, machinery manufacturing, and manufacturing. Grob, Inc. is known for their quality machines that enhance productivity and accuracy in cutting and machining processes. They are ISO 9001:2015 certified, ensuring to provide stringent quality standards and excellent industrial solutions.
Pawlus Gear Company, founded in 1985 and headquartered in Tampa, Florida is a manufacturer and supplier specializing in custom gears, machined parts, and assemblies. The company’s product portfolio includes spur gears (internal & external), bevel gears, helical gears, splines and sprockets. These products are available in various sizes to meet unique client applications and requirements. The company also offers custom gear manufacturing services for industrial, aerospace, transportation and military applications. With various in-house capabilities, the company offers pre and post-sales support including technical guidance, to help customers achieve their desired gear specifications.
Arrow Gear Co., founded in 1947 and headquartered in Downers Grove, Illinois, is a manufacturer of high-precision gears catering to aerospace and commercial industries. Its specialization lies in spiral bevel gears, and it also offers a comprehensive range of gearing solutions, including bevel gears, spur gears, helical gears, curvic couplings, and complete gearboxes. These products find applications across various machinery and equipment, facilitating power and motion transfer. The company holds several certifications in quality standards such as ISO 9001:2015, AS9100 REV D, and Nadcap for Heat Treating and Non-Destructive Testing.
Gear Co. of America Inc., established in 1992, is a manufacturer engaged in the engineering, design and manufacture of assemblies, gears and motion control solutions. The company is based in Cleveland, United States and with a strong emphasis on precision engineering and advanced manufacturing techniques, they offer a diverse range of gear products, including spur gears, helical gears, bevel gears, and more. Their selection of products find applications in various industries such as automotive, aerospace, industrial machinery, and power transmission.
Amarillo Gear Co. LLC., established in 1917, is a renowned manufacturer specializing in precision-engineered gearboxes and drive systems. They are part of The American Gear Manufacturers Association (AGMA) since 1950 and is part of Mormon Holdings Inc. The company aims on delivering products for various industrial applications, including power generation, oil and gas, mining, and more. Their selection of products are known for their performance, durable construction, and power transmission capabilities.
Cleveland Gear Company, Inc. was founded in 1912 and is headquartered in Cleveland, Ohio. The company is a manufacturer of gears, speed reducers, and other parts for industries such as manufacturing, mining, and packaging. The company has four product and service categories: Enclosed Drives, Open Gearing, Custom Drives, and Field Service & Rebuilds. Enclosed Drives include modular gear products, larger enclosed drive products, and helical enclosed drive products. Open Gearing includes Master Worm Systems and services such as case hardening. Custom drives are produced according to industry need such as rubber production and mineral processing.
KA-Wood Gear & Machine Co., established in 1920 and headquartered in Madison Heights, Michigan, is a manufacturer of gear blanks, including CNC turning, milling, and grinding. The company specializes in producing quality gear blanks with expertise in spur, helical, worm gears, spline shafts, and sprockets and can reverse engineer gear samples. Its gears serve diverse industries, including aerospace, automotive, wind energy, packaging, and mining. The company is capable of milling, shaping, hobbing, and grinding its electrodes for faster setup and shorter times.
Avon Gear & Engineering, founded in La Grange, Illinois, in 1974 is a manufacturer of Custom Gears in different materials and sizes. The company's product portfolio includes spur gears, helical gears, bevel gears, worm gears, and surface coatings to enhance wear resistance and reduce friction. The company serves markets including Medical and Healthcare, Aerospace and Defense, Consumer Goods, Industrial Manufacturing and Construction and Building. The company provides services such as Product Selection Guidance, Engineering Support, New Product Design and Development and Custom Manufacturing.
Atlanta Drive Systems, founded in 1943 and located in Farmingdale, New Jersey, is a supplier of drive systems. The company’s broad range of products includes gear racks, pinion ears, servo reducers, linear actuators, and washdown gearboxes. These products play a fundamental role in automation and robotics for precise and controlled movement, industrial machinery for applications like material handling and manufacturing, motion control for regulating speed and torque, linear motion systems for accurate positioning, and the food and beverage industry. The company’s products are used to enable precise movement, control, and efficiency in mechanical and automated systems across diverse sectors.
Bharat Gears Ltd., incorporated in 1971 and located in Thane, Maharashtra, India, is a manufacturer of machinery gears with certifications including IATF 16949, ISO 9001, and ISO 14001. The company’s products include ring gears and pinions for automobiles and tractors, and differential gears and gear sub-assemblies for aftermarket applications. It also offers transmission gears and shafts manufactured to a range of industrial standards. The company serves clients in the automotive, agricultural, and construction industries.
Renold, established in 1947, and based in Manchester, UK, is a manufacturer and supplier of industrial chains, gearboxes, and couplings. Their product portfolio includes tooth chains, transmission drive chains, gear and gearboxes, couplings, conveyor chains, leaf chains, sprockets, and accessories. The company offers the latest innovation with high precision-engineered power transmission products. The products are used in various industries which include agriculture, construction, energy, environment, food and drink, transportation, and machinery.
Hangzhou Chinabase Machinery Co., Ltd., founded in 1992 and based in Hangzhou, China, is a manufacturer specializing in an array of products, including power transmission components. Its key products encompass chains and sprockets for industrial power transmission, gearboxes to enhance torque and reduce speed, couplings for shaft connections, and gears used across industrial applications. Its products find applications in automation, conveyor technology, packaging, food, pharmaceuticals, and more. The company maintains quality and sustainability, holding certifications like ISO 9002, ISO 9001, API, ISO/TS 16949:2002, and ISO 10012 measurement management system.
Shenzhen Power Motor Industrial Co. Ltd, established in 2001, and based in Shenzhen, China, is a manufacturer and supplier of electric power motors. The product portfolio includes a diverse range of brushed and brushless DC motors, universal AC motors, gear motors, brushless blowers, and motor controllers. The products are used in various industries such as smart home improvements, appliances, medical, agriculture, industrial automation, and power tools. All the company products are ISO-certified with quality system certificates.
Kohara Gear Industry Co., Ltd. (KHK), established in 1935, is a Japanese manufacturer headquartered in Kawaguchi, Saitama, specializing in the production of stock gears. The company’s product portfolio includes bevel, helical, internal, miter, and plastic gears. Additionally, it offers other types of stock gears such as screw, spur, and worm gears. The company also provides standard and circular pitch (CP) gear racks, gear couplings, as well as pre-lubricated bevel gear boxes designed to be freely mountable in any direction. Furthermore, the company offers customization options, allowing customers to choose specific gear tooth pitches, sizes, grades, and materials, such as metal and plastic.
Weichai Holding Group Co. Ltd., established in 1946 and headquartered in China, is a manufacturer of industrial equipment and powertrain systems. The company encompasses famous brands such as Weichai Power, Shacman, and Fast Transmission. Its main business spans six key segments: powertrain systems, commercial vehicles, agricultural equipment, and more. Its products serve diverse markets, including construction machinery, marines, and gen-sets. The company has won numerous national science and technology awards and prestigious accolades, such as the National Civilized Organization and the China Quality Award.
Renold Canada Ltd. is based in LaSalle, Quebec, Canada, and is a manufacturer of power transmission products established in 1920 as a subsidiary of Britain's Renold Plc. The company specializes in designing and manufacturing a wide range of parts used for power transmissions. These include engineering chains, helical gears, and couplings used for vibration damping. The company also offers equipment for material handling or material separation, and customization options for skids and modules. It serves clients in the oil and gas, mining, and renewable energy sectors.
W M Berg, founded in 1967 and based in Cudahy, Wisconsin, is a manufacturer and supplier of precision industrial parts. The company delivers ISO 9001:2015 certified products and services, including assemblies, bearings, belts & chains, couplings & shafts, gears, fasteners & hardware, pulleys & sprockets and more. W M Berg provides designing, developing, manufacturing and testing facilities to its clients in the aerospace, medical and motion control industries. Its distributors include Applied Industrial Technology and Motion Industries.
igus GmbH, established in 1964 and based in Cologne, Germany, is a manufacturer and distributor of technical products made using polymers for movement. Its products include injection molding frames, motor control systems, and plain bearings, and it has over 240,000 products in over 1,000,000 variations. It serves 188,000 companies from over 80 countries worldwide in 50 different industries, including packaging, automotive, and renewable energy. The company is ISO 9001, ISO 14001, and ISO 50001 certified, and in 2023, it recorded €1.115 billion in sales. Since 2021, the company has purchased 380 new injection-molding machines and has replaced 275 old ones.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Linn Gear Co |
6.3%
|
| 2 | Stock Drive Products/Sterling Instrument - SDP/SI |
6.3%
|
| 3 | Red Lion |
5.7%
|
| 4 | Rexnord |
5.4%
|
| 5 | Arrow Gear Co. |
5.1%
|
| 6 | ondrives us |
5.1%
|
| 7 | QTC METRIC GEARS |
5.1%
|
| 8 | Circle Gear & Machine Co., Inc. |
5.1%
|
| 9 | Avon Gear & Engineering |
3.9%
|
| 10 | Davall Gears |
3.3%
|
Derivation Method
The ranking is calculated based on the click share within the gear 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
|
21 | 80.8% |
|
China
|
2 | 7.7% |
|
India
|
1 | 3.8% |
|
United Kingdom
|
1 | 3.8% |
|
Japan
|
1 | 3.8% |
60 products found
60 products
10+ people viewing
Last viewed: 11 hours ago
■Features ・Precision injection compression molding makes it possible to increase the thickness of the web and maintain gear accuracy at the same t...
Maeda Iron Works Co., Ltd.
70+ people viewing
Last viewed: 13 hours ago
This gear is a tractor gear. The upper and lower teeth are aligned at three points on the circumference.
Maeda Iron Works Co., Ltd.
100+ people viewing
Last viewed: 9 hours ago
This gear shaft is machined with 4 module spur gears and involute serrations, and is finally polished in-house.
Saito Koki Co., Ltd.
70+ people viewing
Last viewed: 1 day ago
A cylindrical gear with tooth traces machined parallel to the axis. This gear is most commonly used to transmit power between two parallel axes, an...
Muro Corporation Co., Ltd.
50+ people viewing
The spline shape of the outer diameter gear and inner diameter is realized by press processing. ■Succeeded in pressing the inner diameter part, wh...
Saito Koki Co., Ltd.
100+ people viewing
Last viewed: 13 hours ago
A gear with two spur gears in one gear, and is used for things such as deceleration. Compared to manufacturing and incorporating two spur gears, th...
Muro Corporation Co., Ltd.
60+ people viewing
Last viewed: 15 hours ago
We succeeded in converting the internal spline shape from the conventional sintering method to precision press processing. ■Applications transmiss...
Saito Koki Co., Ltd.
70+ people viewing
Last viewed: 7 hours ago
A gear that meshes with a small spur gear and rotates it internally. The gears rotating on the inside are spur gears, and the gears on the outside ...
Muro Corporation Co., Ltd.
50+ people viewing
Complex three-dimensional shapes, which were conventionally achieved by a combination of sintering and cutting methods, were realized by pressing, ...
Saito Koki Co., Ltd.
160+ people viewing
Last viewed: 1 day ago
■What is worm gear? A cylindrical ``worm'' with screw-like spiral teeth and a ``worm wheel'' which is a helical gear (helical gear) are meshed at r...
10+ people viewing
Last viewed: 1 day ago
■Hiro-Lab1 We will utilize our many years of metal processing know-how to propose products that are manufactured in Japan. ■Hobby chisel The blade...
Muro Corporation Co., Ltd.
40+ people viewing
The gear shape of the inner diameter part and the outer periphery convex part are formed using a transfer press. ■Applications electric actuator
Riken Corporation
30+ people viewing
Last viewed: 2 hours ago
Standard Response
Original material with patented technology, high-strength PEEK gear that can be used without lubrication. Developed an original material using Rike...
Saito Koki Co., Ltd.
110+ people viewing
A pair of gears used to transmit power between two axes that neither intersect nor are parallel. Basically, they intersect at an axis angle of 90°....
Muro Corporation Co., Ltd.
50+ people viewing
Using a transfer press, the gear shape has a shear surface of over 70%, 9 protrusions, and a protruding shape on both sides of the inner diameter. ...
Saito Koki Co., Ltd.
110+ people viewing
Last viewed: 21 hours ago
A pair of conical gears used to transmit power from two intersecting axes. The shapes of tooth streaks include straight, curved, and hashedral. Our...
10+ people viewing
Last viewed: 1 day ago
Rack gears are useful for transmitting linear power such as rotating power to linear motion, linear power to rotary motion, parallel reciprocating ...
Kyowa Kogyosho Co., Ltd.
30+ people viewing
Last viewed: 5 hours ago
■Features Used in the rotating parts of construction machinery. The size is φ50mm to φ250mm, and supports modules up to 10. We are building an envi...
Muro Corporation Co., Ltd.
60+ people viewing
By switching from the conventional "sintering + induction hardening" to "pressing + carbonitriding", we have achieved cost reduction and weight red...
10+ people viewing
Last viewed: 1 minute ago
Rack gears are useful for transmitting linear power such as rotating power to linear motion, linear power to rotary motion, parallel reciprocating ...
Muro Corporation Co., Ltd.
50+ people viewing
We have achieved high precision machining of the outer periphery sensing part to increase the diameter. ■Applications engine crankshaft
Sanki Co., Ltd.
70+ people viewing
Last viewed: 16 hours ago
Standard Response
■Applications Flywheels, pulleys/gears, conveyor drums, hollow shafts, cams/levers, etc.
Sanki Co., Ltd.
100+ people viewing
Last viewed: 1 day ago
Standard Response
■Applications In addition to the applications of the SCE200 type, it is especially suitable for timing pulleys with short boss widths.
Sanki Co., Ltd.
70+ people viewing
Last viewed: 14 hours ago
Standard Response
■Applications In addition to the applications of the SCE200 type, it is especially suitable for timing pulleys with short boss widths.
Sanki Co., Ltd.
80+ people viewing
Last viewed: 1 day ago
Standard Response
■Applications Clamp shafts, pumps, cams, gear parts, brake discs, sprocket wheels, etc.
