ARG TECHNOLOGY
The Technology Behind ARG
Precision engineering, advanced gyro technology, and decades of marine experience come together to deliver reliable roll stabilization for vessels around the world.
How ARG Works
Turning Motion Into Stability
Inside an ARG gyro stabilizer, a high-speed flywheel generates angular momentum. When the vessel begins to roll, the gyro responds through controlled gimbal movement, producing stabilizing torque that helps counteract the vessel's motion.
The result is a smoother, more comfortable ride with reduced vessel roll—helping everyone onboard stay comfortable and allowing the vessel to perform more effectively in challenging conditions.
The Science Behind Stabilization
Angular Momentum Meets Controlled Gimbal Motion
An ARG gyro creates stabilizing torque by combining the angular momentum of a rapidly rotating flywheel with the natural movement of its gimbal system. As the vessel rolls, the gyro responds through this movement, generating torque that counteracts the vessel's roll.
Angular Momentum
The rotating flywheel generates angular momentum. The faster the flywheel rotates and the greater its rotational inertia, the greater the angular momentum available to generate stabilizing torque.
Gimbal Motion
As the vessel rolls, the gyro's gimbal system allows the spinning flywheel to move naturally in response to the vessel's motion. This movement enables the flywheel's angular momentum to produce stabilizing torque.
Stabilizing Torque
The interaction between angular momentum and gimbal motion produces torque that acts against the vessel's roll, helping reduce unwanted movement and creating a more stable ride.
ENGINEERED FROM EXPERIENCE
From Aerospace Engineering to Marine Stabilization
Tohmei's engineering background extends across aerospace, system products, and other demanding industries. This experience in precision manufacturing, control technology, and quality management provides the foundation for the ARG Anti Rolling Gyro.
ARG grew from gyro technology developed through aerospace attitude-control work for satellites. Tohmei carried that experience into marine stabilization, developing and manufacturing a practical gyro system designed to deliver reliable roll reduction in the demanding marine environment.
Engineering experience that spans land, sea, air and space.
THE EVOLUTION OF ARG
From Engineering Expertise to Marine Stabilization
ARG combines Tohmei's engineering experience with gyro technology adapted for the marine environment, evolving into a dedicated range of marine stabilization systems.
1995
Tohmei Manufactures ARG for Mistubishi
(Japan Market)
Development finished and sales of ARG units started in the Japanese domestic market.
1995
Tohmei Manufactures ARG for Mistubishi
(Japan Market)
Development finished and sales of ARG units started in the Japanese domestic market.
2001
ARG Sales Expand to International Markets
ARG exports to customers around the world began.
2009
ARG Introduces new larger ARG 375T
ARG launched it's largest most powerful ARG unit to match demands for larger vessels.
2009
ARG Introduces new larger ARG 375T
ARG launched it's largest most powerful ARG unit to match demands for larger vessels.
2014
ARG Introduces new ARG 175T
ARG launched a new middle product line reaching even more vessels on the market.
2015
ARG Introduces Retuned 250T-1
Retuned model offers better performance in low wave environments. (Original 250T, also known as ARG-4000 line, also still available.)
2015
ARG Introduces Retuned 250T-1
Retuned model offers better performance in low wave environments. (Original 250T, also known as ARG-4000 line, also still available.)
2016
ARG Ownership Goes Completely to Tohmei
The original manufacturer of ARG, Tohmei Industries, bought the rights and took over the full ARG business from Mitsubishi.
2018
ARG Introduces new compact options ARG 50T / 65T
ARG launched two compact options to meet more smaller vessel stabilization needs.
2018
ARG Introduces new compact options ARG 50T / 65T
ARG launched two compact options to meet more smaller vessel stabilization needs.
2023
ARG America Launches
Tohmei created ARG America to expand and improve service to dealers and customers in the American market even more.
2024
ARG Introduces new smaller ARG 45T
ARG launched it's newest and most compact model yet, reaching even more customers.
2024
ARG Introduces new smaller ARG 45T
ARG launched it's newest and most compact model yet, reaching even more customers.
2027
ARG Prepares to Revive ARG 125T Product Line
ARG will be reviving the ARG 125T (formerly ARG-2000) product line. Expected launch is May 2027.
WHY ARG
Designed to Work.
Built to Last.
ARG is designed with a simple goal: reliable stabilization that works when you need it, without becoming another system you have to constantly manage.
Simple By Design
A straightforward mechanical system means fewer components and fewer potential failure points.
BUILT TO LAST
ARG is designed for long-term durability and dependable operation. There have been cases where the bearing life has reached approximately ten years.
MINIMAL MAINTENANCE
For most customers, ARG requires little regular maintenance or attention, allowing the system to do its job without becoming a constant concern.
MORE TIME ON THE WATER
Choose ARG because you want to spend your time boating—not dealing with unnecessary maintenance, repairs, drydock visits, or shipyard downtime.
You just want it to work.
Keep your boat on the water, not in the drydock.
Marine gyro stabilization, precision engineered in Japan since 2001.
EXPLORE ARG
CONTACT
Tohmei Industry Co., Ltd.
Japan
International Sales
Contact us for dealer and product inquiries.
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