The NACHI 5201 double row angular contact ball bearing features a 12 mm bore diameter, 32 mm outer diameter, and a width of approximately 15.9 mm. It is constructed from steel with a pressed steel cage and typically comes in an open or double-sealed design, offering a 20-degree contact angle for enhanced load handling. This bearing supports a dynamic load rating of around 10,700 N and a static load rating near 5,950 N, with a maximum grease-lubricated rotational speed of up to 16,000 rpm. Its compact dimensions and robust load capacity make it suitable for high-speed, precision applications.