Manufactured by CHG Bearing, the F4-9 is a precision Miniature Thrust Ball Bearings. Key dimensional parameters include a 4 mm bore diameter, a 9 mm outer diameter, and a 4 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.

F4-9 - Miniature Thrust Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | F4-9 |
| Raceway Design | Without Raceway |
| Dimensions | |
| Bore Diameter (d) | 4 mm |
| Width (B) | 4 mm |
| Outer Diameter (D) | 9 mm |
| Radius rs min | 0.15 mm |
| Outer Ring Bore d1 | 4 mm |
| Inner Ring Outside D1 | 9 mm |
| Performance | |
| Dynamic Axial Load Ca (N) | 166 N |
| Static Axial Load C0a (N) | 156 N |
| Internal Design & Weight | |
| Cage Type | TD |
| Ball Qty. Z | 8 |
| Ball Size Dw | 1.2 mm |
| Reference Data | |
| Reference Weight (g) | 1.5 g |
| Stainless Suffix | H |
F4-9 9 mm 4 mm 9 mm 4 mm Frequently Asked Questions about F4-9 Miniature Thrust Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing F4-9 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.
To safeguard CHG Bearing F4-9 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (4 mm x 9 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Quality starts with raw material selection: CHG Bearing crafts F4-9 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Absolutely. The CHG Bearing F4-9 Miniature Thrust Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF F4-9, FAG F4-9, NSK F4-9. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
