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This section provides an overview for gear rolling tester as well as their applications and principles. Also, please take a look at the list of 11 gear rolling tester manufacturers and their company rankings. Here are the top-ranked gear rolling tester companies as of October, 2025: 1.OPTAC Measuring Technologies Pvt. Ltd., 2.TPR CO.,LTD., 3.Ravjeet Engineering Specailities Pvt Ltd.
Table of Contents
A Gear Rolling Tester (GRT) is a precision inspection system used to evaluate the accuracy and functional performance of gears by meshing and rotating them under controlled conditions.
Gears are essential components in automotive transmissions, aerospace gearboxes, robotics, and many other applications where smooth motion and reliable power transmission are critical. Even if a gear is manufactured to design specifications, it may not perform properly if it fails to mesh smoothly in practice. A Gear Rolling Tester bridges this gap by replicating actual operating conditions and confirming that gears will function reliably in real-world use.
The standard testing method is to mesh the gear under inspection with a high-precision master gear and rotate them together. This process makes even the smallest errors — such as tooth profile deviations, pitch errors, eccentricity, or runout — visible as fluctuations in torque, load, vibration, or noise. A Gear Rolling Tester records these values as numerical data and graphs, making it possible to identify defects that static measurements may overlook. Advanced systems can also measure DFCE (Double Flank Composite Error) and TTCE (Tooth-to-Tooth Composite Error) with micron-level precision.
The applications of Gear Rolling Testers can be broadly divided into the following categories.
In manufacturing, Gear Rolling Testers are indispensable for final inspection. Because gears are the “heart” of a machine, even slight inaccuracies can compromise the entire system. By detecting functional defects before shipment, manufacturers can ensure smooth operation, reduce warranty claims, and minimize costly downtime.
Gear Rolling Testers are also valuable in R&D, where they validate new gear designs, materials, and lubrication methods. Unlike simulations alone, GRTs provide real-world meshing data, helping engineers optimize tooth profiles, reduce noise, improve efficiency, and extend service life.
Gears often operate under heavy loads and long service cycles. Gear Rolling Testers make it possible to study wear behavior, endurance limits, and failure modes by varying load conditions and running extended tests. This supports reliability-focused design in industries where downtime is unacceptable.
Recent advances allow Gear Rolling Testers to be automated and connected to Industry 4.0 systems. They can be seamlessly integrated with SPC (Statistical Process Control) platforms, enabling real-time monitoring, root-cause analysis, and continuous improvement in gear quality. This integration supports process optimization at scale, helping manufacturers maintain consistent standards across multiple production lines.
*Including some distributors, etc.
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OPTAC Measuring Technologies Pvt. Ltd., established in 2005, specializes in dimensional metrology solutions for engineering and metalworking industries. We deliver complete gauging systems—from concept, design, and manufacturing to trials, installation, and training—with reliable after-sales support. Backed by a 100+ strong, skilled team and robust infrastructure, our NABL-accredited lab ensures high-precision calibration. Our advanced manufacturing setup features cutting-edge machines and equipment to meet exacting quality standards. We offer comprehensive solutions including multi-gauging systems for gears, steering, crankshafts, pistons, and cylinder liners; automated gauging systems; remote monitoring; and cloud-based line control units. Our SPC-enabled systems ensure detailed statistical analysis and component traceability, making us a trusted one-stop partner for precision quality assurance and control.
ACCURATE ENGINEERING COMPANY PVT. LTD, founded in 1963 and based in Maharashtra, India, is a manufacturer specializing in precision measuring instruments and gauges for the engineering industry. Its product offerings includes Air Gauging, Electronic Gauging, Air Probes, Software, and Multi Gauging Fixtures, in which these instruments are vital for dimensional metrology and quality control applications. The company is known for its adherence to precision, and quality, with a global name through product exports.
TPR Co., Ltd., established in 1939 and located in Tokyo, Japan, is a manufacturer that provides components for the automotive industry. The company offers various products and services, including piston rings, cylinder liners, valve sheets, and automotive exterior parts. It also offers automotive goods and devices for testing and maintenance. Its product offers resistance to weathering and chemicals, broad temperature range and durometers, and is recyclable and reusable. It serves a diverse range of industries, including automotive, transportation machinery, industrial machinery, power generation, aerospace, alumina and aluminum production, and more.
KLINGELNBERG Group origin dating back to1863, is a manufacturing company and a powerhouse in the gear industry, based in Switzerland. The company specializes in developing and manufacturing machines for bevel gear and cylindrical gear production, precision measuring centers for rotationally symmetrical objects, and precision gear components. Its business units include four product lines: Oerlikon Bevel Gear Technology, Höfler Cylindrical Gear Technology, Klingelnberg Precision Measuring Centers, and Klingelnberg Drive Technology/Customized Bevel Gears. Its products are used by customers in automotive, eMobility, aircraft, agriculture, construction, robotics and marine industries. It has been serving the Japanese market successfully since its foundation in 1954.
Gleason Corporation, founded in 1865, is a full service supplier of machine engineering, tool manufacture and workholding systems, based in the United States. The company has evolved into the largest gear systems provider worldwide. It is a forerunner in the development and manufacture of production systems for all types of gears including design software for gears and power transmission systems, gear production machinery, metrology systems, automation solutions, related equipment and plastic gears. From power tools and medical applications, car and truck transmissions, windpower turbines, to the largest gears for mining machinery, it has a solution that fits your requirement.
Ranking as of October 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | OPTAC Measuring Technologies Pvt. Ltd. |
29.4%
|
| 2 | TPR CO.,LTD. |
17.6%
|
| 3 | Ravjeet Engineering Specailities Pvt Ltd |
5.9%
|
| 4 | Accurate Metrology and Automation |
5.9%
|
| 5 | Alankar Engineering Equipments Pvt. Ltd. |
5.9%
|
| 6 | Reddy Instruments |
5.9%
|
| 7 | Gleason Corporation |
5.9%
|
| 8 | KLINGELNBERG |
5.9%
|
| 9 | ACCURATE ENGINEERING COMPANY PVT. LTD |
5.9%
|
| 10 | Nippon ITM, Inc. |
5.9%
|
Derivation Method
The ranking is calculated based on the click share within the gear rolling tester page as of October 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.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
India
|
2 | 50.0% |
|
Japan
|
2 | 50.0% |
