Outer race is the stationary ring in a rolling-element bearing that provides the outer contact surface for rolling elements in computer cooling fan bearing assemblies.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Width | 3-10 mm | |
| Hardness | 58-64 HRC | |
| Radial Runout | < 0.005 mm | |
| Outer Diameter | 8-40 mm (fan bearing specific) | |
| Surface Roughness | Ra 0.1-0.4 μm | |
| Concentricity Tolerance | < 0.01 mm | |
| Raceway Curvature Radius | 52-53% of ball diameter |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
This bearing assembly is a precision mechanical component used in the manufacture of computer cooling fans.
Precision bearing supporting compression rollers in pharmaceutical tablet presses
A mechanical assembly within a furniture hinge that facilitates smooth rotational movement and reduces friction between moving parts.
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The outer race provides the stationary outer raceway surface for rolling elements, maintains bearing alignment with the fan housing, distributes loads from fan operation, and minimizes vibration transmission.
High hardness (58-64 HRC) prevents plastic deformation under load, reduces wear from rolling contact, maintains dimensional stability at operating temperatures, and extends bearing service life in continuous fan operation.
Interchangeability depends on exact dimensions, raceway geometry, and material specifications. Ball bearing outer races are not interchangeable with sleeve or fluid dynamic bearings without complete assembly replacement.
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