1. Product Overview The S7010ACDGA/P4A single‑row super‑precision angular contact ball bearing features 25° ACD contact angle, GA universal‑match configuration and strict P4A tolerance grade. It supports DB, DF or DT combined mounting, bears combined radial and single‑direction axial loads, delivers high rotary accuracy, rigidity and high‑speed performance, specially designed for machine‑tool spindle and precision rotary equipment. It is widely used for CNC machine spindles,