[Basic Knowledge Material] Gear Integrated Motor for Small AGVs and Small Robots

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GS Series

last updated：Nov 06, 2025

Corelss Motor Co.,ltd HQ

A compact gear is built into the motor! It can deliver high torque while maintaining the same motor size. *Basic knowledge document: Special presentation of technical materials on the gear-integrated motor!

The gear-in-motor "GMH series" is a high-efficiency geared motor designed with a lightweight and compact structure, incorporating a small planetary gear within a coreless motor. This is achieved by utilizing the hollow structure, which is one of the features of the coreless design. By embedding the gears in the hollow section, it enables space-saving for the entire system. Furthermore, by placing the gears inside the motor, it also contributes to the quietness of the geared motor. By serving as an alternative to products with gear heads, it contributes to the miniaturization of systems and robots. Since there is no iron core, there are no losses that cause heat generation, allowing for high-speed rotation. It is widely used in small AGVs (automated guided vehicles), small transport robots, and compact robots! 【Features】 ■ Lightweight and compact yet powerful due to the special coreless structure ■ Suitable for small applications requiring high-speed rotation ■ Excellent quietness due to the embedded small planetary gear ■ Adjustable to desired rotation speed and torque; custom motors can be manufactured! ■ Achieves miniaturization of geared motors by placing small gears inside the motor ■ Options for encoders and brakes are also available For more details, please download the catalog or contact us.

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basic information

【FA Equipment Applications】 - Small robots - Small AGVs (Automated Guided Vehicles) - Small conveyors - Small unmanned transport vehicles - Small assistive carts - Small electric carts - Small unmanned carts - Small humanoid robots - Small customer service robots - Small transport equipment - Small arm robots - Small SCARA robots - Small vertical multi-joint robots - Small compound arms - Small picking inspection devices - Small box packing robots - Small cardboard palletizing - Small machine tools supply and retrieval - Small construction and canning structure welding - Small PET bottle picking and transport - Small electronic component picking inspection - Small transport component picking and transport - Small parallel picking (overhead type) - Small dispensers - Small bolt and screw tightening and other general FA equipment - Small autonomous robots - Small agricultural machinery - Small home appliances - Small automobiles - Small quadruped robots - Small underwater mobile robots - Small nursing care robots

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For those struggling with the miniaturization of robots, we have 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 GS series from Coreless Motor delivers high torque while maintaining the size of the motor. The significant difference comes from utilizing one of the core features of the coreless structure: the hollow structure. By incorporating gears within that 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 the moment when what was once impossible becomes 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, electric tools, and many others.