Taiho engine bearings

These high-performance, high-quality engine bearings were made possible by the latest technologies, which were obtained through the dedication of Taiho to tribology, and by the integrated system that comprises material research. Taiho's Micro grooved bearings are highly innovative, high-performance engine bearings with fine grooves provided in the bearing inner wall. These bearings break the tradition of absolute flatness in bearings. Source: https://www.taihonet.co.jp/e/engine_b.html