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This section provides an overview for shaft couplings as well as their applications and principles. Also, please take a look at the list of 24 shaft coupling manufacturers and their company rankings. Here are the top-ranked shaft coupling companies as of December, 2024: 1.Dayton Superior Products, 2.System Components, Inc., 3.DieQua Corporation.
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Categories Related to Shaft Couplings
A shaft coupling, also known as a coupling or joint, is a general term for components that connect two shafts.
Shaft couplings primarily connect the machine side (driven side) to the motor, smoothly transmitting the driving force.
Among various types, flexible shaft couplings are commonly used to absorb vibrations by allowing for shaft misalignment. This flexibility reduces the load on bearings and absorbs shocks and vibrations from the machinery.
Shaft couplings are widely used in machinery that involves drive and driven transmission mechanisms. For instance, in rotating machines like pumps, blowers, and agitators, shaft couplings connect the motor (drive side) to the impeller shaft (driven side) for power transmission.
These are suitable for machinery prone to misalignment or that generates significant vibrations, with a bush between the flange and bolt to absorb vibrations.
Often utilized in machinery requiring a high transmission capacity.
Rotational power is transmitted by securing the drive and driven shafts with mounting joints using bolts. Methods of securing the shaft and coupling include key material and set bolts or shrink fitting.
A bush made of rubber or similar material is inserted at each fixing point with a bolt, absorbing shaft runout, vibration, and misalignment while smoothly transmitting power. Regular inspection and replacement are crucial as cracks from aging can reduce flexibility and vibration absorption.
These are bolted into place and require precise centering to prevent misalignment. Without a bushing, they provide lossless power transmission, ideal for situations requiring the transmission of large amounts of power.
Beyond flexible and fixed shaft couplings, there are additional types, such as universal and Oldham shaft couplings. Selection should match the equipment's specifications.
Commonly used structures include muff and flange types. Muff couplings cover the shafts' outer periphery with a cylindrical boss, while flange types are connected by inserting flanges into both shaft ends and securing them with reamer bolts.
Varieties include flange type, laminated leaf spring, chain, gear type, and rubber shaft couplings, each serving different requirements.
Appropriate when connecting axes have significant misalignment or intersect, available in constant and non-constant velocity types.
Suitable for parallel axes with minor misalignment between them.
With a multitude of types, including rigid, metal slit, metal coil spring, magnet, pin/bush, disc, high damping performance laminated rubber, jaw, and resin bellows types, selection depends on the application and characteristics.
A commonly used structure where a rubber bush on one bolt end connects the flanges on both shaft ends, transmitting torque through compressive strength. Its flexibility accommodates shaft center deviations.
Connects joint flanges with a laminated leaf spring to transmit torque, accommodating misalignment and angular misalignment thanks to its flexibility.
Two hubs on the axes to be connected are fitted with sprockets of the same tooth count and connected by a chain, offering limited flexibility.
Internal teeth on the inner cylinder mesh with external teeth on the boss part's external cylinder, transmitting large torque.
Entirely made of rubber, compared to flange-type flexible shaft couplings, these accommodate misalignments in all directions thanks to the rubber elastic body.
*Including some distributors, etc.
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Rocom Couplings Corporation is a manufacturer of shaft couplings and related components based in California, USA. Established in 1980, the company's product lineup includes flexible shaft couplings, servo couplings, motion control couplings, and specialized couplings for specific industries. These couplings are designed to provide accurate torque transmission, compensate for misalignment, dampen vibrations, and ensure performance in demanding environments. Its products are found in various applications in robotics, automation, medical equipment, industrial machinery, shipbuilding, and more.
Zero-Max, Inc. is a US-based manufacturer and supplier specializing in precision motion control solutions. Established in 1949, the company works delivering products to the industrial sector. The company offers a comprehensive range of couplings, torque limiters, and other motion control components that cater to various industries, including automotive, packaging, and robotics. With an aim to engineering excellence and a track record of performance, its products enhance motion control solutions, and since 2008 the company is certified in ISO 9001:2008.
NBK America LLC, founded in 2015 and based in King of Prussia, Pennsylvania, is an American manufacturer and a subsidiary of Japan's Nabeya Bi-tech Kaisha, specializing in mechanical components. Their product range includes couplings, like miniature shaft couplings for precision machine tools and semiconductor manufacturing equipment, special screws, such as vacuum application screws and other machine components. NBK offers finite automaton (FA) solutions, including wireless positioning units for production lines and setup operations. NBK provides machine component servicing, such as vibration resistance treatment and laser engraving. Services for couplings and special screws include coupling stainless steel screw alteration and screw length adjustment.
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.
Dayton Superior Products is a manufacturer and supplier of power transmission components based in Troy, Ohio. The company deals in shaft clutches which have numerous applications in motors, Pneumatic or hydraulic cylinders, and Gearboxes whereas the shaft collar is available in different materials and has multiple uses such as mechanically securing and locating specific components on a shaft. The couplings are used for connecting two shafts and transferring motion between them and because of these diverse applications the products have uses in Material handling & conveyors, Packaging machinery, Medical Agriculture, and Motion control industries.
Coupling Corporation of America, founded 1968 in the US, is a manufacturer of flexible shaft couplings, rigid couplings and keyless clamp hubs. The company competes in a wide range of sizes, with speeds reaching up to 100,000 RPM, and shaft sizes ranging from 0.5 inch all the way up to 36 inches and beyond. Nuclear and fossil fuel power plants, petrochemical facilities, the military and large process plants, depend on it for custom engineered solutions. It has well-positioned itself in the engineered coupling arena by designing effective and maintenance-free solutions to complex coupling requirements that cannot be handled by ordinary OEM couplings.
Ruland Manufacturing Co., Ltd. was founded in 1937 and is headquartered in Marlborough, Massachusetts. The ISO 9001:2015-certified company began by creating a wide range of products such as bicycle tire pumps and various fittings. The company pivoted strategies in the 1970s to manufacture fittings such as shaft collars and couplings, which are now used in medical devices, robotic systems, food processing, and in machine tools. The company’s current product list includes machine components, rubber bumpers, rollers, couplings, and indexing plungers.
GAM Enterprises, Inc., founded in 1990 in the US, is a manufacturer of precision mechanical drive solutions used in automation technology. The company's products offering is among the broadest in the industry including robotic gearboxes, servo-gearboxes, precision spiral bevel gearboxes, linear mounting kits, and other specialized mechanical drive systems in a wide range of sizes and configurations. Its customers are machine builders and robotic OEMs in different industries including aerospace, automotive, medical, material handling, robotics, and semiconductor. Its strengths lies in its ability to modify standard designs, provide completely customized solutions, and integrated product assemblies to meet customer specific application requirements.
System Components, Inc. established in 1967, System Components, Inc. is a manufacturer specializing in gear couplings such as flange-type gear couplings, sleeve-type gear couplings, and disc couplings. The company is based in Michigan, USA, but has several representatives throughout the country. Aside from gear couplings, the company also manufactures torque limiters in different designs, such as DIN universal joints, SAE universal joints, and sprockets. System Components, Inc. also offers custom machining on top of custom engineered couplings.
Climax Metal Products Company (CMP) is an American manufacturer of engineered shaft locking solutions originally founded in 1946 before its acquisition by RBC Bearings in 2013. Based in Cleveland, Ohio, the company’s product range includes rigid couplings, keyless locking devices, shaft collars, and mounted light duty bearings. They also offer custom engineering and technical support services for unique customer projects. CMP products are primarily used by their clients in construction and mining, as well as in the transportation, aerospace, and energy sectors.
DieQua Corporation, a Bloomingdale, US-based company founded in 1980, is a manufacturer and supplier of sequential gearboxes as well as various motion control and power transmission drive components. The company presents spiral bevel gearboxes, servo gearheads, speed reducers, and shaft phasing and variable speed gearboxes. It also produces cycloidal reducers, screw jack systems, and zero backlash couplings and line shafts. The bevel gearbox design provides high precision for motion control and rugged construction to withstand rigorous dynamics. It is an AHTD member, PTRA member, MCMA member, Lubriplate partner, and IQS partner.
Stafford Manufacturing Corp., founded in 1975 and located in Wilmington, Massachusetts, is a manufacturer and distributor of shaft collars, rigid shaft couplings, and specialty mechanical components. It offers precision machining and fabrication of small to medium-sized components of various designs. It also provides high-tolerance components, including simple parts, mated assemblies, and full enclosures. The company's service portfolio includes CNC milling, 3D prototyping, and laser engraving for prototyping and production.
Advance Precision Technology is a manufacturer of ball screws, linear shafts, and the like, started in 2013 and based in Pune, India. The company fabricates ball screws, flexible couplings, industrial couplings, and linear bearings. It also produces torque limiters, precision lock nuts, and XYZ axis slides to be sold to its customers. To manufacture rolled ball screws, the variant of its ball screws, it uses metal alloys like stainless steel, mild steel, aluminum, galvanized iron, and their mixture.
Miki Pulley Co., Ltd., founded in 1939, is a manufacturer and provider of solutions for power transmission and control problems, headquartered in Kawasaki City, Japan. They manufacture various products essential for all industries, including couplings for high-precision power transmission, electromagnetic clutches and brakes for power transmission when energized, and speed changers and reducers for controlling the speed of machinery. They also offer inverters, linear shaft drives, rotation speed indicators, torque limiters, and ROSTA rubber springs.
COUP-LINK, Guangzhou LINK Automation Equipment Co., Ltd., established in China in 1998, is a manufacturer of precision shaft coupling. The company offers a wide range of precision coupling and ball screw support unit for precision industrial and commercial applications. Its production strength lies in its advanced coupling manufacturing equipment allowing it to produce all kinds of precision couplings in accordance with various international standards. Its products can be found in various key markets including food processing, energy, medical, metals, machine tools and material handling on applications such as stepper & servo drives, dynamometers, scanners, fans & blowers, conveyors and compressors.
Mighty Co., Ltd. (MIGHTY CORPORATION, LTD.), established in 1973 with headquarters in Nagoya City, Japan, is a manufacturer of transmission parts and components. The company's product line includes universal joints, friction clutches, safety clutches, and transmission couplings. Its coupling and safety clutches are available for consumer devices and general machinery, as well as RoHS-compliant heavy-industry components. These products are used as parts for motors, industrial automation robots, and photocopying machines, among others. In 1982, the company obtained an API (American Petroleum Institute) license for its large oil pumping reducer.
AMI-Elektronik GmbH & Co. Produktions KG, founded in 1983 and headquartered in Munich, Germany, is an incremental encoders manufacturer and supplier. The company's products include Incremental angle rotary encoders, rotary encoders for manual positioning of movement direction mainly used in machine tools, and accessories including connectors, bellows couplings, and clamps. These products are used in positioning and motor speed feedback applications, including servo, industrial, and heavy-duty applications. It also provides original equipment manufacturing services and replacements for OEM encoders. In 2023, it relaunched its range of mini-incremental encoders.
GanterNorm, established in 1894 and located in Furtwangen, Germany, is a manufacturer and supplier of standard machine elements specializing in clamping, operating, and fixture components. With an extensive catalog comprising over 70,000 readily available parts, it serves a diverse clientele. Among its offerings are GN 115 stainless steel latches with lockable operating elements, GN 449.4 plastic snap latches with gripping tray, GN 938 zinc die casting hinges for panels, GN 515 latches with extended housing and operating elements, and GN 282.9 plastic swivel clamp connector joints.
TYMA CZ, s.r.o. was established in 2004 and is based in Brno, Czech Republic is a supplier and distributor of power transmission and conveyor belts. The company’s product portfolio includes timing belts, V-belts, flat belts, conveyor belts, pulleys, clamps, and more. The power transmission and conveyor belts are designed for quality, performance, and durability. The products are used in various industries such as metal fabrication, automotive, aerospace, food processing, and packaging. It is devoted to providing its customers with quality products and services, and it is constantly expanding its product range and services.
Itafran, located in Rhone, France, is a supplier of a broad collection of mechanical transmission components. The company procures motor brackets, cylindrical bushings, deep groove ball bearings, cylindrical bearing rollers, and track rollers. It also sources classic toothed belts, imperial profiles, heavy-duty conveyor chains, and clamping rings. A motor bracket is specifically used to support the motor and dampen the shocks due to the vibrations induced by the operation of the engine. It manages a close relationship with 1,600 customers, mainly located in France and neighboring countries.
ABSSAC Ltd, launched in 1982 and headquartered in Evesham, United Kingdom, is a supplier of various types of rotary and linear power transmission equipment. The company provides lead screws, ball screws, satellite roller screws, and hydraulic bushes. It also offers shaft couplings, clutches and brakes, springs, edge-welded bellows, and offset couplings. The variant of its lead screws, precision lead screws, are available from 1mm to 25mm in diameter and can be combined with a diverse amount of nut options.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Dayton Superior Products |
8.4%
|
| 2 | System Components, Inc. |
8.4%
|
| 3 | DieQua Corporation |
7.2%
|
| 4 | Rocom Couplings Corporation |
7.2%
|
| 5 | Climax Metal Products Company |
7.2%
|
| 6 | Stafford Manufacturing Corp. |
6.0%
|
| 7 | Ruland Manufacturing Co., Inc. |
6.0%
|
| 8 | Xinxiang Jintian Hydraulic Transmission Co.,Ltd |
4.8%
|
| 9 | Coupling Corporation of America |
4.8%
|
| 10 | GAM Enterprises, inc. |
4.8%
|
Derivation Method
The ranking is calculated based on the click share within the shaft coupling 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
|
12 | 54.5% |
|
China
|
3 | 13.6% |
|
Japan
|
2 | 9.1% |
|
India
|
1 | 4.5% |
|
Germany
|
1 | 4.5% |
| Czechia (Czech Republic) | 1 | 4.5% |
|
France
|
1 | 4.5% |
|
United Kingdom
|
1 | 4.5% |
143 products found
143 products
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You can separate it with one push with your thumb. Built-in spring-loaded valves prevent water from leaking from both couplers when removed. Conven...
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A power transmission component that transmits the power and motion of the drive shaft to the driven shaft, and at the same time absorbs misalignmen...
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