Ball Bearings from National Precision Bearing, Inc.

Silverthin Bearing SF Series - Type A

Silverthin Bearing SF Series - Type A -- View Larger Image
Silverthin Bearing SF Series - Type A-Image

In applications with axial loads in one direction the A-Type, angular contact ball bearing should be used. This bearing also works well in radial or combined radial-thrust applications. The A-Type bearing should never be used alone to support moment loads or reversing axial loading.

Two A-Type bearings are often used as a duplex pair. Different configurations for duplex bearings are shown in the Engineering section of this catalog.

Please consult SilverThin engineering for application of these bearings.


Product Category
Ball Bearings
Primary Bearing Category
Radial Ball Bearing
Conrad / Deep Groove
Aerospace (optional feature); Instrument / Miniature (optional feature); Medical / Dental (optional feature); Military (optional feature); Semiconductor
Design Units
4.0000 to 35.0000 inch (101.600 to 889.000 mm)
Outside Diameter
Outer Ring Width
Static Radial
Dynamic Axial
Dynamic Radial
Seals / Shields