3309 ATN9

3309 ATN9 – Angular contact ball bearing (double row) for space-saving double bearing function.

Quality that safeguards processes
This bearing design is intended for combined loads. Double-row versions carry axial loads in both directions and simultaneously absorb radial forces. They compactly replace a bearing pair and save installation space. The focus is on smooth running, high speed capability, reproducible results, and defined axial guidance.

Design and manufacturing quality
Staggered raceways with a defined contact angle in each row ensure axial stiffness. Finely machined raceways reduce friction and promote smooth running. The cage is made of fiber-reinforced polyamide. Double-row designs combine the function of a bearing pair in a compact form. In this design, the open construction remains low-friction and simplifies lubrication. The outer ring features a groove with a snap ring (NR) for positioning. Tolerances are within tolerance class Normal (P0). Angular adjustability is limited; precise alignment is recommended.

Convincing in everyday life
In practice, consistent stiffness, uniform temperature and vibration levels, and predictable quality are observed even with frequent start/stop cycles and high cutting data. Other bearing designs are better suited for purely radial heavy loads.

Summary
In summary: speed-resistant, axially guiding and dimensionally stable – for stable processes and reliable results.