The 7008CYDUP4 Nachi angular contact ball bearing features a 40 mm bore diameter, 68 mm outer diameter, and 15 mm width, with a 15° contact angle designed for high rigidity in both radial and axial directions. It is a single-row, super-precision bearing with ABEC-7 (P4) quality rating, constructed from steel with a polyamide resin cage for reduced friction and durability. This bearing supports dynamic loads up to approximately 20.7 kN and static loads around 16 kN, making it suitable for high-speed, precision applications requiring stable performance and long service life. The open design facilitates lubrication and heat dissipation.