Angular Contact Ball B. SKF 3201 ATN9

The SKF 3201 ATN9 double-row angular contact ball bearing, measuring 12 × 32 × 15.9 mm, accommodates combined radial and axial loads in both directions.

The 3201 ATN9 angular contact ball bearing is a double-row rolling bearing made from standard bearing steel (100Cr6) with a bore of 12 mm, an outer diameter of 32 mm and a width of 15.9 mm. Thanks to its double-row design with a contact angle of 30 degrees, this bearing unit simultaneously supports radial forces and axial forces acting in both directions. SKF manufactures this version with standard radial clearance as well as in the higher tolerance class P6 or ABEC 3, which contributes to precise shaft guidance.

What applications is the 3201 ATN9 double-row angular contact ball bearing used for?

Design engineers use the double-row angular contact ball bearing 3201 ATN9 wherever rigid bearing arrangements are required in confined spaces and single-row bearing pairs would take up too much width. The bearing absorbs tilting moments and guides shafts axially in both directions. Typical applications include compact shaft mountings with combined load directions and high demands on axial guidance. As this is an open bearing without integrated seals, it is used in lubricated housings.

What is important to bear in mind when installing the 3201 ATN9 angular contact ball bearing?

Before installation, the ambient conditions and lubrication must be determined. The polyamide cage and the 100Cr6 material limit the permissible temperature range to between –20 and +120 degrees Celsius. As the bearing is of an open design, a clean housing with external sealing helps to protect against the ingress of dirt. It should also be noted that the bearing offers increased precision in accordance with tolerance class P6 or ABEC 3. The standard design of the outer ring, which has no groove, requires a precise axial fit in the housing seat.