The NACHI 5312ZZ is a double row angular contact ball bearing featuring a 60 mm bore diameter, 130 mm outer diameter, and 54 mm width. Constructed from steel with a pressed steel cage and double metal shields, it offers a 20-degree contact angle for handling radial, axial, and moment loads. This bearing supports a dynamic load capacity of 128,000 N and a static load capacity of 101,000 N, with maximum speeds of 3800 rpm (grease) and 5000 rpm (oil). Its robust design suits medium-duty industrial applications, operating reliably up to 250°F, making it ideal for pumps, gearboxes, and automotive drives.