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Concentric
General purpose, compact, modular, inline reducers and gearmotors offering easy installation of output chains and sprockets; high shock load capacity; durability; and wide ratio ranges.
Product Lines
Beier®
Adjustable Speed, Viscous Traction Drive with Manual Handwheel or Electric Remote Control
Helical Shaft Mount (HSM)
Helical Shaft Mounted Speed Reducer available with CEMA Screw Conveyor Drive Option.
Paramax®
Parallel and Right-Angle Drives that are built on almost six decades of Sumitomo excellence in Power Transmission Enginee
AC Inverter
Adjustable Frequency Drives provide cost-effective solution for a wide range of applications
See the Cyclo in Action
The Cyclo speed reducing system is based on an ingeniously simple principle. The speed reducer has only three major moving parts: the high speed input shaft with an integral eccentric cam and roller bearing assembly; the cycloid disc; and the slow speed output shaft assembly. The smooth, progressive rolling action of the cycloidal disc eliminates friction and the pressure points of conventional gears. All of the Cyclo's torque transmitting components roll, and are symmetrically placed around the shaft for balanced, smooth, and quiet operation. Click here to see the Cyclo in action.Interactive Timeline
Our proud heritage began in the early 1900s with manufacturing of direct current electric motors by Sumitomo Machinery Company, Ltd., and the invention of the first Cyclo reducing mechanism by Mr. Lorenz Braren in Munich Germany. Explore how we evolved as innovators and global leaders in the power transmission industry.Click here to view the interactive timeline.
Engineering Service Center (ESC)
We have expanded our aftermarket and service capabilities to better serve our partners in business.Learn more about Sumitomo's Engineering Service Centers.
Locate Your Nearest Representative
Our comprehensive sales and service network extends throughout North and South America. Enter your zip code to find the Sumitomo facility, sales representative, and distributor in your region.
