NU312 Single‑row Cylindrical Roller Bearing 60×130×31mm High‑speed For Industrial Transmission Equipment Product Overview NU312 is an open‑type single‑row cylindrical roller bearing with dimensions 60×130×31mm. It has two ribs on the outer ring and rib‑free inner ring, allowing free axial floating movement between shaft and housing. Manufactured from high‑quality GCr15 chrome steel, this separable‑structure bearing delivers powerful heavy radial‑load capacity and stable high