The Frontier Leaders · Sumitomo Drive

Sumitomo Drive

Japan · sumitomodrive.com

Sumitomo Drive supplies precision gear reducers and gearheads, including the Fine Cyclo DA Series for servo motors. These components provide torque transmission and motion actuation for industrial robotic systems.

Robotics · watchlist · score 74

Positioning

Sumitomo Drive Technologies is the power-transmission brand of Sumitomo Heavy Industries (TSE: 6302), and one of a handful of global kingpins in precision reduction gears for industrial robotics alongside Nabtesco, Harmonic Drive and Nidec. It supplies cycloidal precision gearboxes (Fine Cyclo, E-Cyclo/ECY), servo gearheads, and integrated AGV/AMR wheel-drive systems (smartris) used in robot joints and mobile robots. In 2025-26 it extended its Fine Cyclo high-precision line and acquired Michigan gear-maker Riverside Spline & Gear to add vertically integrated domestic (US) precision-gear capacity; the open question is entity-scoped revenue, as reported reducer figures are group/segment-level.

Facts, with sources

  • Acquired Riverside Spline & Gear Inc. (Marine City, MI)Ownership change · angleadvisors.com
  • 100-500m+ est (reducer/robot-component line, division-scoped)Revenue band · shi.co.jp/english/info/2025/6kgpsq0000003pzq.html
  • controlled_by: Sumitomo Heavy IndustriesOwnership change · shi.co.jp/english/info/2025/6kgpsq0000003pzq.html
  • Added DA Series gear head for servo motors to the Fine Cyclo high-precision gearbox lineupProduct launch · shi.co.jp/english/info/2025/6kgpsq0000003pzq.html

7 facts on file. Members see all of them with the source link.

Scores, Robotics (of 10)

Deployment8
Production8
Commercials6
Progress6
Technology6
Positioning8
Firepower10
Leverage6

Traction: deployment, production, commercials, progress. Capability: technology, positioning, firepower, leverage.

Categories

RoboticsRobotics · Components / Actuation

Questions this page answers

What does Sumitomo Drive do?

Sumitomo Drive supplies precision gear reducers and gearheads, including the Fine Cyclo DA Series for servo motors. These components provide torque transmission and motion actuation for industrial robotic systems. Sumitomo Drive Technologies is the power-transmission brand of Sumitomo Heavy Industries (TSE: 6302), and one of a handful of global kingpins in precision reduction gears for industrial robotics alongside Nabtesco, Harmonic Drive and Nidec. It supplies cycloidal precision gearboxes (Fine Cyclo, E-Cyclo/ECY), servo gearheads, and integrated AGV/AMR wheel-drive systems (smartris) used in robot joint

Where does Sumitomo Drive rank in robotics?

Sumitomo Drive is on the Robotics watchlist list of Frontier Tech Intelligence with a score of 74 out of 100, below the Top 100.

Where is Sumitomo Drive based and when was it founded?

Sumitomo Drive is based in Japan.

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