Angular Contact Ball Bearing – 3306 ATN9/C3

The 3306 ATN9/C3 is a double row angular contact ball bearing engineered for compact and high-performance machinery. Its back-to-back configuration provides a stiff bearing arrangement with reduced axial space requirements compared to two single row angular contact bearings.

With a 30 mm bore, 72 mm outside diameter, and 30.2 mm width, this bearing features a 30° contact angle for efficient load distribution. It has a basic dynamic load rating of 42.5 kN and a static load rating of 30 kN, capable of operating at speeds up to 10,000 r/min. The C3 radial internal clearance ensures reliable performance under varying operating conditions.

Constructed from high-quality bearing steel with a non-metallic cage, the 3306 ATN9/C3 is suitable for applications where compact design, high-speed capability, and efficient load handling are critical. Typical applications include pumps, gearboxes, and industrial machinery requiring robust and precise bearings.

Specifications