NSK Ltd.

NSK Ltd. is a Japanese precision component manufacturer founded on November 8, 1916, as Nippon Seiko K.K., and headquartered at 1-6-3 Osaki, Shinagawa-ku, Tokyo 141-8560, Japan. The company is listed on the Tokyo Stock Exchange under ticker code 6471. NSK operates roughly 65 production plants across 14 countries and employs more than 30,000 people worldwide, making it one of the largest rolling-bearing manufacturers on the planet, producing on the order of 3 million bearings every day.

NSK's core business spans three areas: industrial machinery bearings, precision machine components, and automotive driveline, chassis, and electrification components. Beyond standard ball and roller bearings, the company manufactures super-precision angular contact ball bearings and cylindrical roller bearings for high-speed, high-accuracy rotating machinery, and a family of linear motion products including ball screws, NSK Linear Guides, and Monocarrier integrated linear actuators.

Through a dedicated robotics product line presented on its Robotics Virtual Expo, NSK supplies components used directly inside robot joints and mobile platforms. The Monocarrier linear actuator combines a ball screw, a linear guide, and a drive motor into a single compact axis unit for robot and automated-equipment motion. The CROXY line pairs an extra-small ball screw with a miniature thrust angular contact ball bearing for space-constrained robot joints. The PalGo active caster, offered in high-capacity and low-floor variants, provides driven wheel units for autonomous mobile robots and cargo carts. NSK also lists an AI-assisted adaptive gripper concept, a compact bilateral gear unit, a magnetostrictive torque sensor, and high-performance and special-environment bearings engineered specifically for robot applications on the same product pages.

NSK maintains a global sales and engineering network spanning Asia-Pacific, the Americas, Europe, and the Middle East and Africa, serving both automotive OEMs and industrial machinery builders, including robot integrators that source precision motion and bearing components from the company. This profile documents the global parent company; NSK's booth at WRC 2026 was operated through its Chinese investment subsidiary rather than the Japanese headquarters entity directly.