Manufactured by CHG Bearing, the F3-8 is a precision Miniature Thrust Ball Bearings. Key dimensional parameters include a 3 mm bore diameter, a 8 mm outer diameter, and a 3.5 mm overall width. This component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.

F3-8 - Miniature Thrust Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | F3-8 |
| Raceway Design | Without Raceway |
| Dimensions | |
| Bore Diameter (d) | 3 mm |
| Width (B) | 3.5 mm |
| Outer Diameter (D) | 8 mm |
| Radius rs min | 0.1 mm |
| Outer Ring Bore d1 | 3 mm |
| Inner Ring Outside D1 | 8 mm |
| Performance | |
| Dynamic Axial Load Ca (N) | 166 N |
| Static Axial Load C0a (N) | 137 N |
| Internal Design & Weight | |
| Cage Type | TD |
| Ball Qty. Z | 7 |
| Ball Size Dw | 1.2 mm |
| Reference Data | |
| Reference Weight (g) | 0.6 g |
| Stainless Suffix | H |
F3-8 8 mm 3 mm 8 mm 3 mm Frequently Asked Questions about F3-8 Miniature Thrust Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges F3-8 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Every production batch of CHG Bearing F3-8 Miniature Thrust Ball Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
Beyond standard alloy steel, CHG Bearing can customize the F3-8 Miniature Thrust Ball Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing F3-8 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
