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Nabtesco

World leader in high-torque precision reducers for robot shoulders and bases

Nabtesco is the world's leading manufacturer of RV (Rotate Vector) cycloidal precision reducers, used in larger, high-torque robot joints such as the base, waist, and shoulder. The company claims roughly 60% of the global precision-reducer market.

Nabtesco's RV reducers are the industry-standard solution for the heaviest-duty joints in industrial robots, combining high stiffness, high shock-load tolerance, and long service life. Its main customers include leading robot OEMs such as Fanuc, ABB, KUKA, and Yaskawa, giving it deep integration across the global robotics supply chain. As humanoid robots scale toward larger, stronger platforms capable of carrying meaningful payloads, the need for high-torque reducers in hip, knee, and shoulder joints makes Nabtesco's technology directly relevant to next-generation designs. The company's established manufacturing scale and quality standards position it as a natural supplier to humanoid robot programs that demand the same reliability expected in industrial automation.