Manufactured by CHG Bearing, the F5-12M is a precision Miniature Thrust Ball Bearings. Key dimensional parameters include a 5 mm bore diameter, a 12 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.

F5-12M - Miniature Thrust Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | F5-12M |
| Raceway Design | With Raceway |
| Dimensions | |
| Bore Diameter (d) | 5 mm |
| Width (B) | 4 mm |
| Outer Diameter (D) | 12 mm |
| Radius rs min | 0.2 mm |
| Outer Ring Bore d1 | 5.2 mm |
| Inner Ring Outside D1 | 11.8 mm |
| Performance | |
| Grease Speed (x1000 rpm) | 14 x1000 rpm |
| Oil Speed (x1000 rpm) | 22 x1000 rpm |
| Dynamic Axial Load Ca (N) | 1056 N |
| Static Axial Load C0a (N) | 942 N |
| Internal Design & Weight | |
| Cage Type | TP |
| Ball Qty. Z | 8 |
| Ball Size Dw | 1.588 mm |
| Reference Data | |
| Reference Weight (g) | 2.1 g |
| Stainless Suffix | H |
F5-12M 12 mm 5 mm 11.8 mm 5.2 mm Frequently Asked Questions about F5-12M 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 F5-12M 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.
In its sealed configuration (Open Type), CHG Bearing pre-charges F5-12M 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.
To ensure optimum performance of CHG Bearing F5-12M Miniature Thrust Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 5 mm bore. For the 12 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Standard batches of CHG Bearing F5-12M conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
