NSK Total Quality. Our products are setting new standards for reliability, energy efficiency and durability. We offer almost all types of bearings, including deep-groove ball bearings, NSK Bearing spherical & cylindrical roller bearings and super- precision bearings. NSK is a global manufacturer of ball and roller bearings, linear motion technology, automotive components and steering systems with both domestic and overseas manufacturing capabilities.

A bearing is a machine element that constrains relative motion to only the desired motion, and reduces friction between moving parts. The design of the bearing may, for example, provide for free linear movement of the moving part or for free rotation around a fixed axis; or, it may prevent a motion by controlling the vectors of normal forces that bear on the KOYO st4190 Bearing moving parts. Most bearings facilitate the desired motion by minimizing friction. Bearings are classified broadly according to the type of operation, the motions allowed, or to the directions of the loads (forces) applied to the parts.