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This section provides an overview for jaw type micrometers as well as their applications and principles. Also, please take a look at the list of 13 jaw type micrometer manufacturers and their company rankings. Here are the top-ranked jaw type micrometer companies as of December, 2024: 1.Hill Industrial Tools, 2.ESCO Company Ltd..
Table of Contents
A jaw-type micrometer is one of the special micrometers used to measure the tooth thickness of spur and helical gears.
It is characterized by the special shape of both measuring elements of the micrometer, which are suitable for measuring gears. It is used to measure straddle tooth thickness, which is measured by placing multiple teeth between them.
Depending on the type, there are two types: an analog type that displays dimensions on a scale, and a digital type that displays numerical values digitally and uses a ratchet stop to measure with constant pressure.
Micrometers are mainly used to measure the straddle tooth thickness of spur and helical gears.
Another measurement method used for the same purpose is called the over-pin method, which uses a ball gear micrometer with a precision-machined steel ball as the measuring element, and measures by inserting the steel ball into the grooves of the relative teeth.
The jaw-type micrometer's measuring element is long, thin, and delicate. Therefore, it must be handled with care when measuring.
Measurement of straddle tooth thickness using a jaw-type micrometer is subject to errors in the measurement results due to differences in the contact conditions of the measuring element and the pressure angle between the left and right sides.
Nevertheless, it is the most commonly used method for measuring tooth thickness because the measured value can be converted to the tool drive of the machine tool. Therefore, it is the most common method used to measure tooth thickness.
On the other hand, the over-pin method measures by applying a steel ball to the gear, so errors due to the degree of contact are unlikely to occur. However, in order to measure properly, it is necessary to prepare a steel ball with a diameter that matches the gear size and pitch. In addition, there is the time-consuming task of calculating the appropriate diameter.
In the case of even-numbered teeth, the measurement is made by placing the pin in the groove of the relative tooth, while in the case of odd-numbered teeth, the measurement is made by placing the pin in the groove 180/z(°) offset from the tooth.
The internal diameter measurement of internal gears is also known as the Vitrine pin method.
*Including some distributors, etc.
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Hill Industrial Tools, located on Ranchview Lane N. in Plymouth, MN, was founded in 1979 and is a distributor of bandsaw blades, cutting tools, coolants, and abrasives. The company sells micro drills, taps, cobalt drills, end mills, and carbide inserts. Additionally, it produces keyseat cutters, reamers, tool holders, thread-turning tools, and lubricants for the equipment used in the automotive, construction, processing, and industrial sectors. The company distributes products from American Drill Bushing, Arch Cutting Tools, Camel Grinding Wheel, Dorian Tool, and Kyocera Micro Tools.
HigherPrecision.com, LLC is a supplier of precision measurement instruments and tools. Founded in 2010, the company is headquartered in Holyoke, Massachusetts, USA. The company's product range includes metrology equipment, inspection tools, and testing equipment. Its main services include online sales, technical support, and calibration services. Its measurement instruments and tools such as calipers, micrometers, and gauges serves industries such as manufacturing, engineering, and research, providing precision measurement solutions to enhance accuracy and efficiency. It also offers multiple customization options to meet the specific needs of its customers.
Rok International Industry Co., Limited, established in 1995 and based in China, is a manufacturer of measuring tools. The company produces products such as hand and hardware tools, measuring and testing instruments, machinery and engineering tools, and measuring tools. All its products are supplied to different countries such as Europe, South Asia, Australia, and North America. The products manufactured in different categories are measuring wheels, digital calipers, digital micro indicators, welding gauges, and bore gauges and are supplied to different industries such as automobile, machine, survey, and construction.
Esco Company Ltd., established in 1972 and headquartered in Osaka, Japan, is a supplier of maintenance, repair, and operations tools, parts, and equipment. Some of its products include test instruments, magnets, office furniture, protective equipment, and generators, and it serves customers in various fields, including construction sites and office buildings. The company was started to market tools to the air conditioning and refrigeration industry in Japan, and every year since then, it has published a catalog of its tools. In 2015, the catalog reached 110,000 products, and the company has approximately 149,000 items in stock for delivery.
Hoffmann SE is a supplier and distributor of quality tools, workshop equipment, and personal protective equipment that was established in 1919 and is based in Munich, Germany. The company’s product portfolio includes hand tools, power tools, measuring tools, clamping tools, cutting tools. The performance, excellence, and dependability of the tools, workshop equipment, and personal protective equipment have been carefully considered. The products are utilized in various industries, including metalworking, automotive, aerospace, jewelry, and electronics. Additionally, it is designed with energy efficiency and environmental compliance in mind.
Asimeto is a German-based manufacturing and supply firm that was established in 2007 and its headquarters are located in Germany. The company specialize in measurement tools, offering a diverse product range including calipers, micrometers, and gauges. Asimeto's precision instruments find application in industries such as manufacturing, engineering, and quality control, aiding accurate measurements. They play a vital role in ensuring dimensional accuracy and quality assurance. With an attention on precision and reliability, Asimeto subsidizes significantly to the field of metrology and measurement technology.
General Tech Services LLC, established in 1998 and headquartered in Sharjah, United Arab Emirates, is a distributor and supplier of commercial and industrial equipment. The company offers thousands of products that include sockets and wrenches, linear and distance measuring tools, and electrical testing equipment. It also offers a wide range of laboratory testing equipment, gas and leak detectors, and laser alignment gauges. The company is a recognized 17025 calibration service provider and stocks brands that include Bosch, Mitutoyo, and DeWalt.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Hill Industrial Tools |
25.0%
|
| 2 | HigherPrecision.com, LLC |
25.0%
|
| 3 | Asimeto |
25.0%
|
| 4 | ESCO Company Ltd. |
25.0%
|
Derivation Method
The ranking is calculated based on the click share within the jaw type micrometer 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
|
2 | 66.7% |
|
United Kingdom
|
1 | 33.3% |
