SKF 7018ACDP4ADGA is a matched set of two Super‑Precision angular‑contact ball bearings (designated 7018 ACD/P4ADGA). Each bearing features a 90 mm bore, 140 mm outer diameter, and 24 mm width, with a 25° contact angle and a P4 tolerance class for ultra‑high precision. The D‑design, high‑capacity arrangement is intended for demanding spindle applications, and the pair is delivered as a universal fit set with a light preload. The total width of the two bearings together is 48 mm, making it suitable for CNC spindles and other high‑stiffness machinery where accurate preload balance and rigidity matter.
