Angular Contact Ball B. SKF 3210 ATN9

The SKF 3210 ATN9 angular contact ball bearing, measuring 50 × 90 × 30.2 mm, provides a double-row arrangement for combined radial and axial loads in both directions.

The 3210 ATN9 angular contact ball bearing is a double-row rolling bearing from the SKF Explorer range with a 50 mm bore, 90 mm outer diameter and 30.2 mm width. It accommodates both radial loads and axial forces in both directions simultaneously. The open design allows direct contact with the lubricant in the surrounding system. Manufactured from standard 100Cr6 rolling-element bearing steel, the bearing ring retains its dimensional stability even during continuous industrial use.

What is the 3210 ATN9 double-row angular contact ball bearing suitable for?

Design engineers primarily use this double-row bearing where rigid shaft guidance is required and tilting moments occur. Thanks to its contact angle of 30 degrees, the 3210 ATN9 angular contact ball bearing transmits axial forces on both sides at an angle to the radial plane. Typical applications include bearing arrangements with combined load profiles and limited installation space. Compared with two paired single bearings, the closed double-row design requires less axial space, which facilitates compact housing designs.

What role do the polyamide cage and P6/P5 tolerances play in the selection process?

The integrated polyamide cage contributes to quiet running and low friction, and is suitable for operating temperatures ranging from –20 to +120 degrees. With dimensional accuracy to tolerance class P6 and running accuracy to P5, the bearing is suitable for precisely guided shafts with normal radial clearance requirements. In this open design without integrated sealing washers, lubrication is supplied via the housing system, which also provides protection against environmental influences.