NSK

NSK manufactures bearings, precision machinery products, ball screws, linear guides and automotive components. Its robotics relevance comes through motion components used in robot joints, actuators, mobile platforms, machine tools and factory equipment where durability, positioning accuracy and compact mechanical design matter.

Facts

Segment: Robotic Motion Components
Country: Japan
Founded: 1916
Website: https://www.nsk.com

About

About NSK

NSK manufactures bearings, ball screws, linear guides and precision machinery components for automotive and industrial systems. These products provide rotation, linear motion and positioning inside robot joints, actuators, machine tools and factory equipment.

The company supplies mechanical building blocks for machines and robotic axes. Load, precision, lubrication and service-life requirements are selected at component level.

Market context

NSK is a bearing and ball-screw chokepoint for robotics. Robot joints, linear axes, end effectors, wheels and precision positioning stages depend on low-friction, durable and traceable motion components.

Ewellix - comparable profile - peer: Linear Actuation Supplier
Festo - comparable profile - peer: Linear Actuation Supplier
Portescap - comparable profile - peer: Linear Actuation Supplier

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Supply

Delta Electronics, Inc. - Inbound - Motion Control - Delta Electronics, Inc. supplies motion control to NSK for NSK robotics rotary and linear actuators - source: nsk.com

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Timeline

2026-05-08 - Partnership - NSK and Delta Electronics sign next-generation robotics MOU - The companies will integrate electronic, control and mechanical technologies around rotary and linear robot actuators. They agreed to cooperate on research, integrated design, system validation and prototypes. Future work will assess commercialization… - source: nsk.com
2025-11-06 - Product Launch - NSK develops rotary and linear actuators for robotics applications - NSK said the actuators combine bearing, linear-motion and mechatronics technologies. The release describes compact, lightweight, high-backdrivability rotary and linear actuator designs. NSK also referenced collaboration with Delta Electronics around built-in… - source: nsk.com
2025-10-30 - Partnership - NSK takes strategic stake and partners with RT Corporation - The transaction used a third-party allotment of new shares and left NSK with more than one-third of RT voting rights. The companies agreed to pursue domestic quadruped robots and humanoid deployment in manufacturing. Their programme combines RT physical-AI… - source: nsk.com

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Relations

Delta Electronics, Inc. - Next Generation Robotics Mou Partner - NSK and Delta Electronics agreed to integrate, prototype and commercialize next-generation robot actuator technologies.
RT Corporation - Strategic Robotics Partner And Investee - NSK acquired more than one-third of RT Corporation voting rights and signed a robotics business partnership.
German Aerospace Center - Robotic Hand Development Partner - NSK and the German Aerospace Center developed the reconfigurable robotic-hand prototype exhibited at iREX 2023.

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