Manufactured by CHG Bearing, the HKA090AP4 is a precision Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 228.6 mm bore diameter, a 241.3 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.

HKA090AP4 - Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKA090AP4 |
| 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) | 228.6 mm |
| Width (B) | 6.35 mm |
| Outer Diameter (D) | 241.3 mm |
| Bore Diameter Tolerance | -0.01-0 mm |
| Outside Diameter Tolerance | -0.01-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 233.3244 mm |
| Outer-Ring Land Diameter (L2 / D1) | 236.5756 mm |
| Counterbore Diameter L3 | 237.6678 mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 14400 N |
| Basic Dynamic Radial Load Rating Cr (N) | 4240 N |
| Basic Static Axial Load Rating C0a (N) | 41610 N |
| Basic Dynamic Axial Load Rating Ca (N) | 10980 N |
| Material | |
| Mass (kg) | 0.186 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 |
HKA090AP4 241.3 mm 228.6 mm 6.35 mm Frequently Asked Questions about HKA090AP4 Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing HKA090AP4 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.
Beyond standard alloy steel, CHG Bearing can customize the HKA090AP4 Thin Section Angular Contact 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.
As standard production, CHG Bearing subjects HKA090AP4 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Engineered according to international ISO boundary plans, CHG Bearing supplies HKA090AP4 with a precision bore diameter (d) of 228.6 mm, an outside diameter (D) of 241.3 mm, and a nominal ring width (B) of 6.35 mm. This configuration yields an effective cross-sectional wall thickness of 6.4 mm and an envelope ratio (D/d) of 1.06, delivering compact rigidity for OEM machinery housings.
