National Precision Bearing (NPB) is a supplier of bearings, motion-related products, and engineered solutions operated by Mechatronics. Its offerings include ball bearings, miniature bearings, bushings, airframe control bearings, spherical plain bearings, aerospace bearing tools, slewing rings, mounted units and inserts, ball transfers, and other products. National Precision Bearing serves aerospace, medical, defense, industrial, semiconductor, and other markets.