The Timken Company is a manufacturer of ball bearings used for high precision applications in markets such as aerospace, agriculture, construction, health, machine tool and general industries. Timken standard radial ball bearings consist of an inner and outer ring with a cage of precisions balls. This type of deep groove design has a construction that can handle radial and axial loads in high speed applications. Timken Fafnir precision angular ball bearings are designed for radial and axial loading in single row and double configurations. The Timken line of precision ball bearings includes type MMX machine tool designs for ultra high speed grinding spindles, type HX for excellent running accuracy, ceramic styles with steel rings, and precision miniature types for ultra precision applications. Timken also manufactures Fafnir super precision, Fafnir screw support and Fafnir ceramic ball bearings. Fafnir housed units are also available.

Koyo is a manufacturer of industrial OEM ball bearings, including angular contact, Conrad type, double row, thin section, miniature, hybrid ceramic and full ceramic configurations. Other types offered by Koyo include single and double row tapered roller, standard spherical roller and spherical roller thrust, and single and double row cylindrical roller bearings. Koyo is also a manufacturer of ball bearings for the OEM automotive market.