28 Ring Gear Manufacturers in 2024
This section provides an overview for ring gears as well as their applications and principles. Also, please take a look at the list of 28 ring gear manufacturers and their company rankings. Here are the top-ranked ring gear companies as of November, 2024: 1.KHK USA Inc, 2.Pioneer Automotive Industries, 3.STD Precision Gear & Instrument, Inc..
Table of Contents
What Is a Ring Gear?
A ring gear, as the name suggests, is an annular-shaped gear with teeth either inside or outside the ring. Commonly used as the outer gear in planetary gear systems, a ring gear with internal teeth is also known as an internal gear.
A critical aspect of ring gears is their circular precision and tooth design. The shape and chamfering of the teeth significantly impact the gear's smooth operation, meshing smoothness, and noise reduction.
Uses of Ring Gears
Ring gears are integral to systems requiring high reduction ratios, like drive plates in automatic transmissions and flywheel clutches in manual transmissions. Segment gears, created by cutting a portion of ring gears, are used in mechanical watches and clocks to transmit reciprocating motion.
Principle of Ring Gears
The functionality of ring gears is best understood within the context of planetary gears, where they are most commonly used. Planetary gear systems consist of sun gears, planetary gears, and ring gears, resembling planets orbiting the sun. These gears are held by a planetary gear carrier.
Planetary gears offer versatile combinations of input and output arrangements between the sun, planetary (carrier), and ring gears, allowing for different gear ratios and rotational directions. The configuration of these gears determines the gear system's operation: fixing two gears results in a direct input-output connection while leaving one gear free with the other as input produces no output.
List of 28 Ring Gear Manufacturers
*Including some distributors, etc.
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- Company Size: largest first
- Year Founded: oldest first
- Year Founded: earliest first
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- United States of America
- Canada
- China
- India
- Italy
- Japan
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KHK USA Inc
Ring Gears
Manufacturer Overview
KHK USA Inc., a subsidiary of Kohara Gear Industry, is based in Mineola, NY, and has been a manufacturer and supplier of metric gears since 2015. The company's products include metric spur gears, helical gears, internal ring gears, gear racks, CP racks, and pinions. These gears are used in automation, packaging, robotics, food processing, and agriculture industries. The company has more than 26,000 ROHS-compliant gear options made of alloy steel, carbon steel, stainless steel, aluminum bronze, and brass. It also offers free gear design software and hosts the "KHK Gear World" site for gear information.
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AmTech OEM
Ring Gears
Manufacturer Overview
Amtech Manufacturing, Inc., established in 1995 with facilities in North America, is a contract manufacturer of gear parts and drive components. The company's products include gears, shafts, castings, forgings, and screw machine parts. Amtech Manufacturing, Inc. also offers flexplate Assemblies, flywheel Assemblies, screw machining, stamping, and fineblanking. The company also offers custom manufacturing, machining, engineering, and laser cutting services. Amtech Manufacturing, Inc. services original equipment manufacturers in the automotive, construction, marine, power sports, and robotics markets.
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STD Precision Gear & Instrument, Inc.
Ring Gears
Manufacturer Overview
STD Precision Gear & Instrument, Inc., since 1986, is a manufacturer of high precision, tight tolerance, configured gears, splines and other mechanical transfer components such as pulleys and sprockets, ratchets, universal joints, cranks and jackscrews used in aerospace, medical, commercial, and military industries. The company in West Bridgewater, MA, has capabilities such as CNC turning & milling, surface & cylindrical grinding, isotropic superfinishing, heat treating, and tool making. The company’s products qualified for applications such as NASA’S Space Station and Hubble Telescope and are certified by ISO 9001 and AS 9100 and Nadcap accredited.
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Rush Gears, Inc.
Ring Gears
Manufacturer Overview
Formerly known as the Globe Gear Company and founded in 1919, Rush Gear Inc. is a manufacturer of custom gears for industrial and commercial applications. Rush Gear's facility is equipped with gear manufacturing technology, including CNC gear cutting machines, gear hobbing machines, and gear shaping machines. The company produces gears in a range of sizes, from small precision gears to large industrial gears that serve thousands of applications across industries such as agriculture, machine shops, manufacturing, robotics, and many more.
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Omni Gear & Machine Corp.
Ring Gears
Manufacturer Overview
Omni Gear & Machine Corp, since 1988, has been a manufacturer of precision-machined custom gears such as spurs, helical, clusters, worms, and sprockets out of materials such as brass, plastic, bronze, alloys, and fiber. The products have applications in graphical arts, food equipment, corrugated box and bag manufacturing, material handling, and custom machines. The Joliet, IL-based company offers customized gear fabrication, machining, shaping, gear grinding, and frequent product inspection during and after production.
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Gear Motions, Inc.
Ring Gears
Manufacturer Overview
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.
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Circle Gear & Machine Co., Inc.
Ring Gears
Manufacturer Overview
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).
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Butler Gear Enterprises, LLC
Ring Gears
Manufacturer Overview
Butler Gear Enterprises (BGE) is a Wisconsin-based gear manufacturer and service company established in 1960. They manufacture custom gear and transmission products from various materials, including metals and non-metals, to plastic and carbon steel. Butler’s extensive gear catalogue includes spur, helical, to worm gear sets featuring British Standard metric, straight and stub gear tooth forms. Their market includes small-scale shops to large oil, auto, military, drilling, aerospace, government and food service companies. As a service provider, Butler Gear offers gear drawings, coatings & plating and engineering services.
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American Precision Gear Co., Inc.
Ring Gears
Manufacturer Overview
American Precision Gear Co., Inc. is a manufacturer of gears since 1956 and is based in California. The company not only manufactures precision gears but crafts many custom gears as well which include spur, ring, miniature, and helical. Splines and worms for industrial machining applications are also designed including custom machined gear racks for various linear motion applications. The company serves numerous industries that require the use of precision and custom gears for various applications, some of them being Biomedical, Aerospace, Oil & Gas, Medical devices, Technology, and lots more.
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Pioneer Automotive Industries
Ring Gear
Company Overview
Pioneer Automotive Industries is based in Meridian, Mississippi, USA, and is a supplier in engine, powertrain, and transmission products established in 1946 before becoming part of the Lodi Group in 2010. The company offers a range of engine parts, including retainers, rocker arms, and valve springs. It also offers transmission mounts for manual as well as automatic transmissions, and powertrain components such as torque struts and driveshaft center supports. The company chiefly serves client OEMs and custom manufacturers in the automotive industry.
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Sonnax
Ring Gears
Company Overview
Sonnax, founded in 1978 in Bellows Falls, Vermont, U.S.A., is a manufacturer and supplier of automotive transmission components, shafts, and the drivetrain. The company provides solutions that boost the performance, reliability, and resilience of transmission modules, drivetrain, and torque converters among other accessories. It fabricates expert tools, including solenoids, shift kits, and valve bodies essential for diagnosis, repairing, and reconstituting transmission mechanisms. Sonnax provides technical support to transmission mechanics, educational manuals, and technical resources.
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Cook-Leitch Inc.
Ring Gears
Company Overview
Cook-Leitch Inc. was incorporated in 1964 and serves as a distributor for engineered components and metal finishing solutions. Cook-Leitch serves a number of industries including home & commercial appliances, aerospace & defense, automotive, agriculture, fluid power & hydraulics, distribution, and heavy truck & construction equipment. Some of Cook-Leitch’s product categories include powdered metal featuring Eastern Sintered Alloys, screw machine/complex shafts featuring Precision Capital LTD, springs/wire forms/stampings featuring Wire products company, split seam tubes featuring Baker Stamping, fasteners featuring Vasco Inc, and metal finishing featuring Decal Metal Finishing, Hale Performance Coatings, and Whitaker Finishing.
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Aichi Steel Corporation
Ring Gear
Manufacturer Overview
Aichi Steel Corporation, established in Tokai, Aichi, in 1934, is a manufacturer engaged in special steels and materials for the Toyota Group. The company's product range includes Steel Bars and Rods, Structural Steel,Steel Pipes and Tubes. The company also manufactures materials other than steel, such as stainless steel, titanium and magnetic materials. In 2011 the company developed a magnet production technology using MAGFINE powder with 30% less alloy and established the Silicon Valley Office in the USA.
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Bharat Gears Ltd.
Ring Gears
Manufacturer Overview
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.
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Luoyang Yujie Industry&Trade Co., Ltd
Ring Gear
Manufacturer Overview
Luoyang Yujie Industry & Trade Co., Ltd (YOGIE) is a Chinese manufacturer of machinery parts and equipment that was established in Luoyang City, Henan in 2004. The company primarily produces machinery equipment such as CNC lathes and machine tools, as well as machinery parts including bearings, couplings, and end covers. It also offers contract manufacturing of various molds (e.g. casting molds, plastic molds) and non-standard parts such as sugar factory or steel mill machinery parts. YOGIE chiefly serves the petroleum, mining, cement, and steel industries, as well as clients in the snack foods industry such as Nanning Sugar Industry Co.
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UMBRAGROUP S.p.A.
Ring Gears
Manufacturer Overview
Umbra Cuscinetti, Inc., established in 1972, based in Foligno, Italy, is a manufacturer of industrial machinery. The company is based in Everett, Washington. Its products portfolio includes gear, shaft, steel ball, tie rod, and electromechanical actuator. Additionally, it provides heat treatment, galvanic process services. The products are used in aerospace, energy and industrial industries. In 2021, it received the Felix Industry Award for Top company in the Mechanics Sector. The company aims to become partners with customers in common shared projects, needs, and mutual confidence.
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Aichi Forge USA, Inc.
Ring Gears
Manufacturer Overview
Aichi Forge USA, Inc. founded in Georgetown, Kentucky, in 1919 is a manufacturer of die forging products. The company's product portfolio includes Custom Die Forgings, Automotive Components, aerospace components, including landing gear parts, engine mounts, and structural components, and generator components. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company provides services such as Product Selection Guidance, Engineering Support, and Custom Manufacturing.
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Atlas Pressed Metals
Ring Gears
Manufacturer Overview
Atlas Pressed Metals, established in 1976 and headquartered in DuBois, Pennsylvania, is a manufacturer of precision powdered metal parts. They specialize in producing complex and simple structural components using materials like iron, sinter-hardened steel, stainless steel, copper, brass, and bronze. Serving diverse industries such as automotive, industrial, medical, energy, and more, their product range includes bushings, bearings, gears, structural components, wear plates, and other custom parts. These components find applications in load-bearing, wear resistance, and corrosion resistance scenarios. relaible
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SUNCALL CORPORATION
Ring Gear
Company Overview
Suncall Corporation, founded in 1943 and headquartered in Ukyo-ku, Kyoto, Japan, is a manufacturer and distributor of automotive parts, hard disk-related components, printer-related products, and communication-related items. The company offers a range of automotive parts, including boot clamps, detent springs, and ring gears. Additionally, the company also provides connectors and adapters for optical communications. Within its printer-related product category, it manufactures shafts, torque limiters, and clutches for business machines. In the realm of hard disk-related products, it offers shock-resistant suspension and DSA suspension for HDD. It has achieved IATF 16949 certification for Shunt Busbars produced at the South Kyoto Plant.
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ASHOKA
Ring Gears
Company Overview
ASHOKA, established in 1952 and based in Noida, India, is a manufacturer and supplier of machinery equipment and parts. The company's product portfolio includes cement plant equipment, industrial gears, cement plant crushers, sugar plant machinery, material handling equipment, ball and kiln mills. The company's products are used in multiple industries, including sugar, steel mills, power plants, mineral and paper. The company also offers turnkey solutions for cement plants, sugar plants, and steel rolling mills infrastructure with quality assurance globally.
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Sparex
Ring Gear
Company Overview
Sparex is a global supplier of replacement tractor and machinery parts and accessories established in 1965 and based in Durban, South Africa. The company offers engine filters essential for the performance and maintenance of agricultural machinery, and tractor parts from brands such as Massey Ferguson and Valmet & Valtra. It also offers related accessories, including lighting solutions, mounts, and grill guards. The company chiefly supplies clients in the agricultural sector, as well as manufacturers of heavy machinery.
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Tank Truck Service & Sales, Inc.
Ring Gears
Company Overview
Tank Truck Service & Sales, Inc. has been designing and building tank trucks since 1948 and is based in Warren, Michigan. The company is a manufacturer, assembler, and distributor of tank trucks and trailers. The company's product offerings include parts and components including tank truck equipment, bulk plant and storage tank equipment, dry break or dry disconnect fittings, valves, hose, hose reels, meters, swivel joints, gaskets, and pipe sealants. Tank truck offerings include refined fuel trucks and trailers, LGP trucks, and specialty tank trucks. Additionally, The company offers metalwork, equipment work, dot testing, paintwork, and sensor repairs.
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Chaoyang Runxing Heavy Machinery Manufacturing Plant
Ring Gear
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Motive Gear
Ring Gears
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Ring Gear Manufacturer Ranking
*Including some distributors, etc.Ranking as of November 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | KHK USA Inc |
9.2%
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| 2 | Pioneer Automotive Industries |
8.5%
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| 3 | STD Precision Gear & Instrument, Inc. |
7.2%
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| 4 | Rush Gears, Inc. |
6.0%
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| 5 | American Precision Gear Co., Inc. |
5.1%
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| 6 | Omni Gear & Machine Corp. |
5.1%
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| 7 | AmTech OEM |
4.8%
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| 8 | Circle Gear & Machine Co., Inc. |
4.4%
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| 9 | Motive Gear |
3.9%
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| 10 | Gear Motions, Inc. |
3.9%
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Derivation Method
The ranking is calculated based on the click share within the ring gear page as of November 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
- Aichi Steel Corporation: 4,650
- SUNCALL CORPORATION: 2,280
- Chaoyang Runxing Heavy Machinery Manufacturing Plant: 30
Newly Established Company
- Chaoyang Runxing Heavy Machinery Manufacturing Plant: 2005 (19 years ago)
- Luoyang Yujie Industry&Trade Co., Ltd: 2004 (20 years ago)
- ZNDmotor: 2002 (22 years ago)
Company with a History
- KHK USA Inc: 1935 (89 years ago)
- SUNCALL CORPORATION: 1943 (81 years ago)
- Pioneer Automotive Industries: 1946 (78 years ago)
Ring Gear Manufacturers in United States
*Including some distributors, etc.
- KHK USA Inc
- AmTech OEM
- STD Precision Gear & Instrument, Inc.
- Rush Gears, Inc.
- Omni Gear & Machine Corp.
- Gear Motions, Inc.
- Circle Gear & Machine Co., Inc.
- Butler Gear Enterprises, LLC
- American Precision Gear Co., Inc.
- Pioneer Automotive Industries
- Sonnax
- Cook-Leitch Inc.
Global Distribution of Ring Gear Manufacturers by Country
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
United States of America
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12 | 52.2% |
India
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4 | 17.4% |
Japan
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3 | 13.0% |
China
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2 | 8.7% |
Italy
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1 | 4.3% |
Canada
|
1 | 4.3% |
