K09020AR0 ultra thin wall angular contact ball bearing is 20 mm cross‑section metric open‑type A thin‑section bearing. It provides reliable higher load‑capacity for mixed radial‑axial conditions while keeping lightweight advantages. Mainly used for robot rotary joints,optical turntables and space‑restrained heavy‑load mechanical assemblies.

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.