Manufactured by CHG Bearing, the HKS14003AS0 is a precision Super Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 140 mm bore diameter, a 146 mm outer diameter, and a 2.5 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.

HKS14003AS0 - Super Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKS14003AS0 |
| Separator | Full complement or 1/16 in spacer balls |
| Characteristics | |
| Bearing Type | Angular contact ball bearing |
| Dimensions | |
| Bore Diameter (d) | 140 mm |
| Width (B) | 2.5 mm |
| Outer Diameter (D) | 146 mm |
| Radial Cross Section H | 3 mm |
| Inner Ring Land Diameter L1 / d1 | 142.2 mm |
| Outer Ring Land Diameter L2 / D1 | 143.8 mm |
| Maximum Shaft/Housing Fillet Radius F | 0.25 mm |
| Performance | |
| Dynamic Radial Rating Ck (N) | 956 N |
| Static Radial Rating C0 (N) | 1514 N |
| Thrust Loading Limit Fa (N) | 734 N |
| Material | |
| Material | stainless steel |
| Reference Data | |
| Mass (g) | 21 g |
HKS14003AS0 146 mm 140 mm 2.5 mm Frequently Asked Questions about HKS14003AS0 Super Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies HKS14003AS0 with a precision bore diameter (d) of 140 mm, an outside diameter (D) of 146 mm, and a nominal ring width (B) of 2.5 mm. This configuration yields an effective cross-sectional wall thickness of 3.0 mm and an envelope ratio (D/d) of 1.04, delivering compact rigidity for OEM machinery housings.
Model HKS14003AS0 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 140 mm) and steep thermal gradients between inner and outer rings.
To ensure optimum performance of CHG Bearing HKS14003AS0 Super Thin Section Angular Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 140 mm bore. For the 146 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing HKS14003AS0 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.
