NTN Corporation is a manufacturer of constant velocity joints, bearings, and precision equipment. NTN products include NTN bearings thrust roller bearings, radial roller bearings, linear motion bearings, plummer blocks, plastic bearings, automatic tensioners, linear modules, and condition monitoring systems for wind turbines.

The company also KOYO 6805ru Bearing offers maintenance, repair, and overhaul services. NTN products are sold to the automotive, industrial machinery, and aftermarket & distributor markets.