Gear In Motor [A must-see for those struggling with robot miniaturization] #Robot

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GSH series

last updated：Nov 06, 2025

Corelss Motor Co.,ltd HQ

Contributing to the miniaturization of robots! A compact gear is built into the motor. It can deliver high torque while maintaining the same motor size. #SmallRobots

For those struggling with the miniaturization of robots, we present a new proposal from Coreless Motor Co., Ltd. The geared motor "GMH Series" is a lightweight, compact, and highly efficient geared motor that incorporates a small planetary gear within a coreless structure. In conventional motors, the motor and gearhead are separate, making the geared motor larger and complicating the miniaturization and weight reduction of the system. The significant difference comes from utilizing one of the core features of the coreless structure, which is the "hollow structure." By embedding the gears within this hollow section, we have made it possible to save space for the entire system. Furthermore, by placing the gears inside the motor, we also contribute to the quietness of the geared motor. **Features** - Lightweight and compact with powerful performance due to the special coreless structure - Suitable for small applications requiring high-speed rotation - Excellent quietness due to the built-in small planetary gear - Adjustable to desired rotation speed and torque - Achieves miniaturization of the geared motor by placing small gears inside the motor - Can manufacture motors according to desired gear ratios - Options available with encoders and brakes

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basic information

【General Purpose FA Equipment】 - General small robots - AGV (Automated Guided Vehicle) - Conveyors - Unmanned transport robots - Trolleys with assistance - Electric trolley robots - Unmanned trolley robots - Human-interaction robots - Customer service robots - Transport equipment - Arm robots - Scara robots - Vertical multi-joint robots - Compo arms - Picking inspection robots - Box packing robots - Cardboard palletizing - Supply and retrieval for machine tools - Welding for construction and canning structures - PET bottle picking and transport - Electronic component picking inspection robots - Transport component picking and transport robots - Parallel picking (overhead type) - Dispensers - Bolt and screw tightening and other general FA equipment - Autonomous robots - Agricultural machinery - Home appliances - Automobiles - Quadruped robots - Underwater mobility robots - Caregiving robots For more details, please contact us or download the catalog.

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※It will take some time to create the prototype.

Applications/Examples of results

To those struggling with the miniaturization of robots, we present a new proposal from Coreless Motor Co., Ltd. A reliable robot that demonstrates great power in a small body. Just imagining it is exciting, isn't it? Unfortunately, with conventional motors, the motor and gearhead are separate, making geared motors larger and complicating the miniaturization and weight reduction of the system. The GSH series from Coreless Motor delivers high torque while maintaining the size of the motor. The key difference comes from utilizing one of the main features of the coreless structure: the hollow structure. By incorporating gears within this hollow section, we have made it possible to save space for the entire system. Furthermore, by placing the gears inside the motor, we also contribute to the quietness of the geared motor. We want to share the joy of making the impossible possible with you. With this aspiration in mind, we support our customers in the miniaturization of motors. - Robot equipment, industrial machinery, mobile robots, transport robots, medical devices, agricultural machinery, power tools, and many more.