KYK Corporation Ltd. (formerly: Yamakai Bearing Ltd) is one of the oldest Japanese manufacturers of ball and roller bearings, established in 1952 in Osaka, certification. Our world-famous KKYK brand seats are shipped to more than 50 countries worldwide and are approved in a wide range of engineering industries. KYK bearings take care of the growing demands for top quality of all. Strict Adherence to Japanese standards of precision and quality makes KYK preferred product selection.