K25020AR0 ultra thin wall angular contact ball bearing is 20 mm cross‑section metric open‑type A thin‑section angular contact ball bearing. It enables space‑saving installation for extra‑large‑bore rotary parts,accepting radial and unidirectional axial loads. Fit for large‑scale rotary platforms and heavy‑load custom automation machinery.

A-type angular contact ball bearings - 20mm series feature a 15° contact angle design with balanced dimensions, engineered for applications requiring moderate load capacity combined with high-speed capability and excellent axial load support. Available in open, shielded, and sealed configurations, with a fixed bore diameter of 20mm and a cross-section height of 20mm. These bearings deliver smooth high-speed rotation, low heat generation, consistent axial rigidity, and dependable long-term performance, making them ideal for high-speed spindles, servo motors, industrial robots, precision machine tools, medical equipment, and automation systems where reliable operation and rotational accuracy are essential.