Manufactured by CHG Bearing, the HKA120AP4 is a precision Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 304.8 mm bore diameter, a 317.5 mm outer diameter, and a 6.35 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.
HKA120AP4 - Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKA120AP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Angular Contact Ball Bearing |
| Series | KA |
| Seal Type | Open |
| Load Direction | Combined Radial and Unidirectional Axial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 304.8 mm |
| Width (B) | 6.35 mm |
| Outer Diameter (D) | 317.5 mm |
| Bore Diameter Tolerance | -0.0127-0 mm |
| Outside Diameter Tolerance | -0.0127-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 309.5244 mm |
| Outer-Ring Land Diameter (L2 / D1) | 312.7756 mm |
| Counterbore Diameter L3 | 313.6646 mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 19070 N |
| Basic Dynamic Radial Load Rating Cr (N) | 5010 N |
| Basic Static Axial Load Rating C0a (N) | 55070 N |
| Basic Dynamic Axial Load Rating Ca (N) | 13200 N |
| Material | |
| Mass (kg) | 0.245 kg |
| Ring Material | Stainless Steel / Bearing Steel |
| Cage Material | Brass / PEEK / Polyimide / Phenolic Resin Fabric Laminate |
| Ball Material | Stainless Steel / Bearing Steel / Ceramic |
| Operating Temperature Range (°C) | -50 to +100 °C °C |
| Precision Class | P4 |
| Radial Internal Clearance | N/A mm |
HKA120AP4 317.5 mm 304.8 mm 6.35 mm Frequently Asked Questions about HKA120AP4 Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts HKA120AP4 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing HKA120AP4 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.
Sourcing HKA120AP4 directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Thin Section Angular Contact Ball Bearings.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for HKA120AP4, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
