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FYH is the oldest and largest manufacturer of mounted ball bearing units in Japan. Since 1950, decades of experience have lead to the development of myriad advancements including automated production for individual self-aligning structure bearings which has allowed FYH to control and fabricate high quality metallic and ceramic bearings while adhering to extremely strict guidelines and tolerances. These manufacturing techniques, in conjunction with the utilization of high quality materials, are what truly set FYH apart from the competition.

FYH abides by stringent Japanese Industrial Standards (JIS) for selection of materials and production methods and, in contrast to today’s commercially available bearings, their products’ surface finishing state is beyond that of JIS bearing specifications.

The bearings are designed with severe operating conditions in mind where high-speed rotation and heavy loads are regularly encountered. Nearly 700 kinds of bearings and 300 types of housings are available in the product line. Therefore, several thousand different combinations of mounted units and inserts are annually produced and supplied to the world market to meet a vast range of applications and industries.

The Ceraball ceramic ball bearing series has been developed on terms originating from the idea that ceramics can effectively replace steel balls as a viable substitute for high quality rolling elements operating in conjunction with steel bearing rings. Unlike many bearing manufactures, who purchase their ceramic balls elsewhere, FYH produce their own ceramic balls from extremely pure silicon nitride ceramic base material (Si3N4) which undergoes a multi-step production process that ensures uniformity at all levels.

FYH aim to continue extensive research and development activities in an effort to fabricate mounted bearing units which can operate without maintenance even under the most demanding situations in applications such as the ocean and space technology sectors. Our ongoing research is specifically focused on the improvement of the Ceraball series under this all-encompassing ideology.












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