K12020AR0 ultra thin wall angular contact ball bearing is open‑type A metric thin‑section bearing with 20 mm cross‑section. It accommodates radial plus one‑way axial loads,features robust cross‑section and superior rotational precision. Perfect for large‑bore compact heavy‑load rotary mechanisms in automation and optical inspection systems.

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.