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This section provides an overview for machine keys as well as their applications and principles. Also, please take a look at the list of 17 machine key manufacturers and their company rankings. Here are the top-ranked machine key companies as of January, 2025: 1.HANSHIN NEJI CO.,LTD, 2.Pin-Key Mfg. Co., 3.Standard Steel Specialty Co..
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A machine key is a machine element inserted into the groove of the mating part of a shaft and gear of a machine tool, etc.
Types of machine keys are described as: "parallel key," and "semi-round key." In addition, "double round key," "double square key," and "single round key" are specified for the parallel key.
Machine keys are essential for power transmission in various applications and fields.
Machine keys are used in the gears on the shaft side of electric motors and pumps, which are the source of power, as well as in mating gears such as gearboxes and pulleys that transmit power to belts.
Machine keys are used in a wide range of fields, including machine tools, construction machinery, food machinery, and other machinery, as well as in vehicle-related fields such as automobiles.
Machine keys are required to have high strength for the purpose for which they are used. They must also have the characteristics of tenacity, tensile strength, and durability due to their fitting structure, and the ability to be removable as needed.
Machine keys are available in various shapes and materials, including carbon steel for machine structural use such as S50C, copper alloy, stainless steel such as SUS316, tool steel, and titanium, depending on the application.
Furthermore, machine keys need to be removed when replacing worn or damaged gears and pulleys, etc. Since it is difficult to remove machine keys that have been used for a long time, tapped keys are also available to make removal easier.
In addition, machine keys need to be replaced with caution because the position of the key groove on the shaft may determine which machine keys can be used.
The order in which machine keys are inserted differs depending on the shape of the key.
*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.
Spartan Tool, established in 1943 and headquartered in Niles, Michigan, United States, is a professional-grade drain cleaning equipment and plumbing machine tool manufacturer. The company's products include high-speed flexible shaft machines, cable machines, and sewer jetters. Its drain locating equipment comes with multiple add-on options, including open- and closed-reel camera systems. It also offers general sewer machine parts and components, drain cleaning accessories, and attachments to enhance cable machine capabilities. The company's services division provides financing options, cable machine refurbishing, and onsite repairs for commercial clients.
Extreme Safety, Inc. is a US-based manufacturer of a wide range of safety products and services, founded in 1992 and headquartered in Carson, California. The company’s product line includes a diverse selection of adhesives and sealants, clamping, fasteners, fittings, and hand tools. It also offers HVAC and refrigeration products, lab supplies, material handling, and storage, as well as measuring and testing supplies. The company provides various services, including safety rentals, SCBA/SAR training courses, and ladder safety training. It caters to multiple sectors, such as consumer electronics, construction, oil and gas, manufacturing, and telecommunications.
Huyett, established in 1906 and headquartered in Houston, Texas, is an ISO 9001:2015 certified manufacturer of industrial fasteners and related products. The company offers an array of pins like cotter pins and spring pins, retaining rings such as external and internal rings, key stock in shapes like square and hexagonal, various types of grease fittings, and a range of O-rings including buna-n, viton, and silicone varieties. These components serve diverse applications in securing, aligning, transmitting torque, reducing friction, and sealing against leakage in machinery and structures.
PIN-KEY Manufacturing Company, established in 1944 and based in Montague, Michigan, is a manufacturer and supplier specializing in headless dowel pins and machine keys. The company’s product line includes headless pins, dowel pins, and machine keys crafted from diverse steel materials to suit different tolerances. It also offers machine key customization with plating or heat treating to suit different requirements. These products serve an array of industries, including HVAC, lighting, manufacturing, medical, and automotive. The company serves clients across North America, offering online quotes and pre and post-sales customer support.
UTKARSH Industries, established in 2013 in India, is a manufacturer of industrial fasteners and tools for automobile, rubber, electronic industry among others. It utilizes stainless steel and prime materials for its products, which include cooling tubes (flexible coolant pipe, PVC cooling pipe), cooling gun (Power Cooling Gun), flexible coolant pipe for CNC machines (nylon coolant pipe), Oil Cups (MS oil cups), and more. Famous for items like clamps, air guns, and oil cups, UTKARSH Industries excels in providing solutions for various industrial needs.
YSK CO., LTD., established in 1966 and headquartered in Osaka, Japan, is a manufacturer that works on the manufacturing of various kinds of shafts, which are essential parts for machines. The company's products include linear shafts, ball screws, linear guides, and precision shafts. It also provides a Linear Bush and Grain Refinement Shaft. Its precision shafts are used for hydraulic components, civil engineering, and building equipment parts. It serves various industries that require shafts for their machines, including automotive, aerospace, marine, construction, and manufacturing.
Standard Steel Specialty Co., established in 1925 in West Mayfield, Pennsylvania, US, is a manufacturer and supplier of stock and custom gear racks. The company's extensive inventory includes machine keys, taper pins, woodruff keys, and gear racks used in the aerospace, power transmission, and automotive industries. The CNC machines with precision cutters manufacture gear racks used in multiple applications. It also provides custom services, mainly grinding, counterboring, tapping, CNC precision, auxiliary machining for cranes, and guide rails.
Menards Inc, founded in the year 1958, based in Wisconsin, United States, is a supplier of high-quality, name-brand merchandise tools, materials, and home supplies. Their product portfolio includes home appliances, building materials, electrical, grocery, tools, and gift cards. The products are used in home applications. The company has over 300 stores listed under different categories for home improvements with top-quality, services, special offers, and great savings which are listed on the online portal.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | HANSHIN NEJI CO.,LTD |
12.5%
|
| 2 | Pin-Key Mfg. Co. |
11.0%
|
| 3 | Standard Steel Specialty Co. |
10.3%
|
| 4 | Huyett |
8.1%
|
| 5 | Stock Drive Products/Sterling Instrument - SDP/SI |
7.4%
|
| 6 | Spartan Tool |
5.9%
|
| 7 | Extreme Safety, Inc. |
5.9%
|
| 8 | N-Tech Engineering Co. |
5.1%
|
| 9 | SOON HOCK GEAR & PRECISION ENGINEERING |
5.1%
|
| 10 | Utkarsh Industries |
5.1%
|
Derivation Method
The ranking is calculated based on the click share within the machine key page as of January 2025. 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
|
6 | 54.5% |
|
India
|
4 | 36.4% |
Malaysia
|
1 | 9.1% |
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