1. Product Overview The S7008ACDGA/P4A single‑row super‑precision angular contact ball bearing adopts 25° ACD contact angle, GA universal‑match configuration and strict P4A precision tolerance. It can bear combined radial and single‑direction axial loads, supports DB, DF, DT duplex mounting. Features low run‑out, high rigidity and excellent high‑speed performance, specially developed for high‑precision machine‑tool spindle rotary systems. It is widely used for CNC machine