Deep Groove Ball Bearings SKF 4212 ATN9

The SKF 4212 ATN9 deep-groove ball bearing is a double-row rolling bearing measuring 60x110x28 mm, offering high radial load-carrying capacity in a compact design.

The 4212 ATN9 deep groove ball bearing is an open, double-row radial ball bearing made from conventional standard rolling bearing steel (100Cr6). Compared with single-row versions, this double-row design can withstand greater radial forces whilst maintaining the same bore diameter of 60 mm and outer diameter of 110 mm. As it does not feature integrated seals, the bearing is suitable for designs in which lubricants can circulate freely and external housing seals prevent the ingress of dirt particles.

What is the 4212 ATN9 double-row deep groove ball bearing suitable for?

This double-row design is primarily used where the installation space is limited to a width of 28 mm and single-row deep groove ball bearings reach their limits. In addition to predominant radial forces, the geometry of the raceways also accommodates axial forces in both directions. Suitable applications include compact shaft mountings subject to combined loads, where uniform force transmission and a clean lubricant circulation are required.

What are the characteristics of the polyamide cage in the ATN9 design?

The suffix ATN9 denotes a polyamide cage for guiding the rolling elements. This plastic cage reduces the component weight and the moment of inertia of the rotating balls, which contributes to smooth running and reduced friction. During operation, the bearing operates within a temperature range of -20 to +120 degrees. As the bearing is of an open design, a clean installation environment and a reliable external lubricant supply via the housing must be provided for.