Manufactured by CHG Bearing, the HKD080XP4 is a precision Thin Section Four-Point Contact Ball Bearings. Key dimensional parameters include a 203.2 mm bore diameter, a 228.6 mm outer diameter, and a 12.7 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.
HKD080XP4 - Thin Section Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKD080XP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | KD |
| Seal Type | Open |
| Load Direction | Radial, Bidirectional Axial and Moment |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 203.2 mm |
| Width (B) | 12.7 mm |
| Outer Diameter (D) | 228.6 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) | 212.598 mm |
| Outer-Ring Land Diameter (L2 / D1) | 219.202 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 25830 N |
| Basic Dynamic Radial Load Rating Cr (N) | 14840 N |
| Basic Static Axial Load Rating C0a (N) | 64630 N |
| Basic Dynamic Axial Load Rating Ca (N) | 23870 N |
| Material | |
| Mass (kg) | 0.694 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 | -0.035-0.021 mm |
HKD080XP4 228.6 mm 203.2 mm 12.7 mm Frequently Asked Questions about HKD080XP4 Thin Section Four-Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Model HKD080XP4 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 203.2 mm) and steep thermal gradients between inner and outer rings.
Engineered according to international ISO boundary plans, CHG Bearing supplies HKD080XP4 with a precision bore diameter (d) of 203.2 mm, an outside diameter (D) of 228.6 mm, and a nominal ring width (B) of 12.7 mm. This configuration yields an effective cross-sectional wall thickness of 12.7 mm and an envelope ratio (D/d) of 1.12, delivering compact rigidity for OEM machinery housings.
In its sealed configuration (Open), CHG Bearing pre-charges HKD080XP4 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.
As standard production, CHG Bearing subjects HKD080XP4 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.
