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This section provides an overview for flex couplings as well as their applications and principles. Also, please take a look at the list of 21 flex coupling manufacturers and their company rankings. Here are the top-ranked flex coupling companies as of December, 2024: 1.Poly Flex Group Pty Ltd, 2.Lindis S.L, 3.Mitsuboshi Belting Ltd..
Table of Contents
A flex coupling is a coupling that has a larger tolerance than the installation error of general couplings. A coupling (shaft coupling) is a mechanical component that connects a motor (drive side) and a machine (driven side) and transmitting power. This coupling absorbs misalignment of both shafts (drive and driven) and suppresses vibration and load on bearings.
Flex couplings are used as shaft couplings for machines that are subject to greater vibration and shock.
Flex couplings are used for high-precision positioning, shaft couplings for servo motors, shaft couplings for direct connection of motors, and for equipment with high loads and inconsistent rotational speeds, because they absorb vibration and misalignment better than general couplings.
Furthermore, by selecting the spacer type of flex coupling, it is also used as a shaft coupling for various pumps, compressors, blowers, etc., as it improves maintainability (by removing the spacer, maintenance of both the drive and driven machines can be performed without moving them).
When a key is cut on the shaft to connect it, it is a "rigid coupling". Flexible coupling is a coupling to which parts and functions are added to provide flexibility.
The flow of coupling selection according to installation and operating conditions is as follows.
The following elements are used to provide flex couplings:
Rubber/Resin-Based: There is deflection and rattling.
Discs: No rattling in the rotational direction and axial displacement is absorbed.
The advantages of using flex couplings are as described above.
As a demerit, the life is physically shorter for rigid couplings because they rotate under the moment of inertia while absorbing misalignment during installation.
*Including some distributors, etc.
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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.
Hayes Manufacturing, Inc. is a manufacturer and supplier of couplings and towing accessories. Established in 1996, the company is headquartered in Fife, Washington, USA. The company's main activities encompass designing and producing couplings, sway controllers, and towing accessories such as Flywheel Couplings, Bearing Supports, Jaw Couplings, Pump Mount Plates and SAE Housing Adapters. Hayes Manufacturing specializes in providing towing solutions for trailers and recreational vehicles. Its main services include customer support, technical guidance, and customized solutions. The company serves industries such as towing, transportation, and recreational vehicles, delivering effective and durable towing products.
Lovejoy was founded in the 1920s and is headquartered in Downers Grove, Illinois as a subsidiary of Timken. The company is an ISO 9001 certified manufacturer of couplings, universal joints, hydraulics, and vibration demeaning products serving customers located around the world in the energy, fluid power, food & beverage, and paper & steel industries. The company carries many types of couplings including grid, flexible, disc, and gear type and is the inventor of jaw type couplings.
The Timken Company (Timken) was founded in 1899 and is headquartered in North Canton, Ohio. Timken designs, manufactures, and manages engineered bearings and industrial motion products worldwide. Timken operates in two segments, Mobile Industries and Process Industries. The Mobile Industries segment’s portfolio includes bearings, seals, and lubrication devices and systems. The Process Industries segment provides industrial bearings and assemblies; industrial motion components, such as gears and gearboxes; and linear motion products, couplings, seals, lubricants, chains, belts, and related products and services to OEMs and end users in various industries.
TB Wood’s, Inc., established in 1857 and headquartered in Chambersburg, Pennsylvania, is an ISO 9001:2015 certified designer and manufacturer of industrial couplings and belted drive solutions. The company offers a range of products including industrial couplings, belted drive solutions, and highly-engineered coupling products such as Sure-Flex and Dura-Flex elastomeric couplings, Form-Flex disc couplings, and Jaw couplings. Its products are used in various industrial controls, transferring power from motors or engines to industrial machinery.
Bearings Industrial Supply Company, Inc (BIS) was founded in 1982 in Addison, Illinois. The company is a supplier and distributor of bearings, seals, belts, power transmission parts, and a variety of other industrial supplies to small and large customers such as Boeing and Toyota. The company isources from manufactureres such as Emerson, KOYO, Tsubaki, NTN, and Timken. The company's offerings include numerous types of bearings, many varieties of seals, several different belts, AC and DC motors, and power transmission components.
Joyce/Dayton Corp. was established in 1873 and is headquartered in Kettering, Ohio. The ISO 9001:2015 certified company is a manufacturer of screw jacks, actuators, and lifting equipment to customers in aluminum smelting, marine, solar energy, and nuclear industries across North America through external distributors. The company’s product segments include screw jacks, actuators, cylinders, solar products, and others. Solar products include solar tracking jacks and actuators as well as custom solar trackers designed to enhance the efficiency of standard solar panels.
Established in 1999, Miniature Precision Components (MPC), as the name implies, is a precision mechanical component manufacturer based in Santa Clara. Since 1972, MPC has made and distributed US-made balls, needle and thrust bearings, shafting, couplings, dowel pins and precision shoulder screws to high-tech and industrial enterprises globally. They also offer custom components to meet client-specific manufacturing needs. MPC doubles as a WM Berg and PIC Design distributor and will interchange part numbers at competitive pricing.
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.
Rathi Transpower Pvt Ltd founded in 1965 in Viman Nagar, Pune India is a manufacturer of coupling products and solutions for exacting power applications. The company’s products portfolio includes a vast variety of standard range couplings namely flexible, spacer, fluid, pin and bush couplings among others. It has a broad spectrum of machining and testing equipment and its processes continually improve over time. The Company is ISO 9001:2015, ISO37301and ISO 14001:2-15 certified. Its range of couplings are readily available through its global distribution system.
JBJ Techniques Limited, founded in 1974 and based in Redhill, Surrey, is a manufacturer of industrial machinery. It offers mechanical and fluid power products, including couplings/bell housings, gearboxes/ clutches, printed wiring boards, pumps/ motors, seals, level indicators and more. The company offers ISO-9001-certified and BS ISO-45001:2018 certified goods and services from specification to technical support, as well as, manufacture to after-sales support to its customers in the UK and across the globe.
Tsubakimoto Chain Co., established in 1941 and headquartered in Osaka, Japan, is a manufacturer of chains for power transmission, transportation use, and variable speed reducers. The company offers a wide range of products, including conveyor chains, lifters, overload protectors, bulk handling systems, and more. It also offers roller chains, timing chains, linear actuators, and metalworking chip handling. Its product is designed to be resistant to particulate abrasion. The company has been certified as an Eco-First Company by the Ministry of the Environment. It serves industries such as steel, automotive, machine tools, food, and environmental sanitation equipment.
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.
Mitsuboshi Belting Ltd. was founded in 1919 and headquartered in Japan is a manufacturer of rubber and plastics for automotive and industrial power transmission belts. The company offers an extensive and diversified product portfolio including conveyor belts, waterproof materials for civil engineering, architectural waterproofing materials, engineering plastic materials and processing, and SF foam injection molding. These products span a wide spectrum of industries and sectors including housing complexes, transportation, automobiles, and construction as heat resistors.
RSV Industries Pvt. Ltd., established in 1969, is a coupling distributor located in Navi Mumbai, Maharashtra, India. The company offers couplings from various brands like UTL and Unique (India), Esco (Belgium), and SGF (German). These products, designed to transmit power between rotating shafts, come in various types, including gear, tire, and pin bush. The company also provides other types of couplings, such as disc, jaw, and curved jaw. These products are employed in various industries, including automotive, mining, and metal processing.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Poly Flex Group Pty Ltd |
10.7%
|
| 2 | Lindis S.L |
10.7%
|
| 3 | Mitsuboshi Belting Ltd. |
10.7%
|
| 4 | Hayes Manufacturing, Inc. |
7.1%
|
| 5 | jbj Techniques Limited |
7.1%
|
| 6 | TB Wood's, Inc. |
7.1%
|
| 7 | TIMKEN |
7.1%
|
| 8 | Rotatek |
3.6%
|
| 9 | KOREA COUPLING CO,. LTD |
3.6%
|
| 10 | RSV Industries Pvt, Ltd. |
3.6%
|
Derivation Method
The ranking is calculated based on the click share within the flex 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
|
8 | 44.4% |
|
Japan
|
3 | 16.7% |
|
India
|
2 | 11.1% |
|
United Kingdom
|
1 | 5.6% |
Australia
|
1 | 5.6% |
Republic of Korea
|
1 | 5.6% |
Spain
|
1 | 5.6% |
Poland
|
1 | 5.6% |
64 products found - Page 1
64 products - Page 1
MIKI PULLEY CO., LTD.
560+ people viewing
Last viewed: 6 hours ago
This is an ultra-high-rigidity metal plate spring type coupling developed for servo motor applications.This type has the excellent properties of be...
5 models listed
MIKI PULLEY CO., LTD.
250+ people viewing
Last viewed: 16 hours ago
High damping performance rubber coupling for servo motors and stepping motors. The newly developed rubber element achieves high damping and low rea...
MIKI PULLEY CO., LTD.
180+ people viewing
Last viewed: 9 hours ago
This is a simple coupling with a cushioning rubber (nitrile rubber) sandwiched between two hubs, and the hub is made of aluminum alloy, making it l...
MIKI PULLEY CO., LTD.
800+ people viewing
Last viewed: 2 minutes ago
The coupling has a simple structure, with a cushioning material (polyurethane elastomer) called an element sandwiched between two hubs, and two typ...
3 models listed
MIKI PULLEY CO., LTD.
280+ people viewing
Last viewed: 8 hours ago
A completely integrated metal coupling with a spiral slit in a cylindrical material, with no backlash. There are two types of materials: the A mode...
4 models listed
TOX Presso Technique Co., Ltd.
30+ people viewing
Last viewed: 4 hours ago
Very Fast Response
The coupling ZWK is screwed directly onto the actuating rod of the TOX®-Powerpackage. TOX® - Flexible connection between power package and die to a...
TOX Presso Technique Co., Ltd.
20+ people viewing
Last viewed: 6 hours ago
Very Fast Response
The ram guide includes coupling ZWK. Attaches to the actuating rod of the TOX®-Power Package. Two bushes on the press frame serve as guides.
MIKI PULLEY CO., LTD.
330+ people viewing
Last viewed: 2 hours ago
This coupling uses a metal coil spring to connect the hubs attached to the shaft, achieving excellent flexibility, small size, and high torque. The...
3 models listed
Tokai Trading Co., Ltd.
170+ people viewing
Last viewed: 10 hours ago
Very Fast Response
■Flexible coupling Supports up to 15,000rpm ■Shaft with octagonal socket Compatible with various clamping devices
2 models listed
MIKI PULLEY CO., LTD.
230+ people viewing
Last viewed: 2 hours ago
This is a pin/bush type coupling that uses aluminum alloy for the main body material, and each part has extremely high rigidity, and the combinatio...
2 models listed
Toa Flex Co., Ltd.
60+ people viewing
Last viewed: 2 hours ago
Standard Response
■Cam arm coupling with safety mechanism - Compatible with products manufactured based on A-A-59326 (MIL-C-27487). - Can be combined with any type a...
Toa Flex Co., Ltd.
50+ people viewing
Last viewed: 10 hours ago
Standard Response
■Cam arm coupling with auto-lock mechanism ・Compatible with all products manufactured based on A-A-59326 (MIL-C-27487). -The arm will not open unl...
Toa Flex Co., Ltd.
40+ people viewing
Standard Response
We offer a wide range of variations (body materials and sealing materials) to accommodate all types of fluids for semiconductor manufacturing equip...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 9 hours ago
Disc coupling ■Summary ・Zero backlash ・Smooth rotation transmission ・A wide variety of variations to suit every purpose A disc type coupling is...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 12 hours ago
Oldham coupling ■Features ・Small size and large torque capacity ・Can be disassembled during assembly ■Slider wear Oldham couplings mainly absorb...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Disc coupling ■Summary ・Zero backlash ・Smooth rotation transmission ・A wide variety of variations to suit every purpose A disc type coupling is...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 1 day ago
Oldham coupling ■Features ・Small size and large torque capacity ・Can be disassembled during assembly ■Slider wear Oldham couplings mainly absorb...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 5 hours ago
Disc coupling ■Summary ・Zero backlash ・Smooth rotation transmission ・A wide variety of variations to suit every purpose A disc type coupling is...
Asa Electronics Industry Co., Ltd.
60+ people viewing
Last viewed: 6 hours ago
■Cushion coupling Cushion-type couplings absorb eccentricity, eccentricity, and rotational vibration by deforming a cylindrical cushion surrounded ...
Asa Electronics Industry Co., Ltd.
60+ people viewing
Last viewed: 10 hours ago
Disc coupling ■Summary ・Zero backlash ・Smooth rotation transmission ・A wide variety of variations to suit every purpose A disc type coupling is...
Asa Electronics Industry Co., Ltd.
60+ people viewing
Last viewed: 8 hours ago
■Cushion coupling Cushion-type couplings absorb eccentricity, eccentricity, and rotational vibration by deforming a cylindrical cushion surrounded ...
Asa Electronics Industry Co., Ltd.
40+ people viewing
Last viewed: 9 hours ago
Disc coupling ■Summary ・Zero backlash ・Smooth rotation transmission ・A wide variety of variations to suit every purpose A disc type coupling is...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 23 hours ago
■Cushion coupling Cushion-type couplings absorb eccentricity, eccentricity, and rotational vibration by deforming a cylindrical cushion surrounded ...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 5 hours ago
Disc coupling ■Summary ・Zero backlash ・Smooth rotation transmission ・A wide variety of variations to suit every purpose A disc type coupling is...
Asa Electronics Industry Co., Ltd.
70+ people viewing
Last viewed: 1 day ago
Rigid coupling ■Features Concentric high precision with one chuck for finishing left and right holes through the tool bit R.A.S. aluminum set scr...
Asa Electronics Industry Co., Ltd.
40+ people viewing
Last viewed: 8 hours ago
Plastic coupling ■Features Our company was the first in the world to manufacture plastic couplings. Currently, we are the only company in the world...
Asa Electronics Industry Co., Ltd.
80+ people viewing
Last viewed: 11 hours ago
Rigid coupling ■Features Concentric high precision with one chuck for finishing left and right holes through the tool bit RSS stainless set screw...
Asa Electronics Industry Co., Ltd.
60+ people viewing
Last viewed: 3 hours ago
Plastic coupling ■Features Our company was the first in the world to manufacture plastic couplings. Currently, we are the only company in the world...
Asa Electronics Industry Co., Ltd.
60+ people viewing
Last viewed: 22 hours ago
Rigid coupling ■Features Concentric high precision with one chuck for finishing left and right holes through the tool bit R.A.C. aluminum clamp t...
Asa Electronics Industry Co., Ltd.
50+ people viewing
Last viewed: 5 hours ago
Plastic coupling ■Features Our company was the first in the world to manufacture plastic couplings. Currently, we are the only company in the world...
