Manufactured by CHG Bearing, the HKC055AP4 is a precision Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 139.7 mm bore diameter, a 158.75 mm outer diameter, and a 9.525 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.
HKC055AP4 - Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKC055AP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Angular Contact Ball Bearing |
| Series | KC |
| Seal Type | Open |
| Load Direction | Combined Radial and Unidirectional Axial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 139.7 mm |
| Width (B) | 9.525 mm |
| Outer Diameter (D) | 158.75 mm |
| Bore Diameter Tolerance | -0.0076-0 mm |
| Outside Diameter Tolerance | -0.01-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 146.7358 mm |
| Outer-Ring Land Diameter (L2 / D1) | 151.7142 mm |
| Counterbore Diameter L3 | 153.7208 mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 15290 N |
| Basic Dynamic Radial Load Rating Cr (N) | 6110 N |
| Basic Static Axial Load Rating C0a (N) | 44090 N |
| Basic Dynamic Axial Load Rating Ca (N) | 14980 N |
| Material | |
| Mass (kg) | 0.263 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 |
HKC055AP4 158.75 mm 139.7 mm 9.525 mm Frequently Asked Questions about HKC055AP4 Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open), CHG Bearing pre-charges HKC055AP4 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.
The CHG Bearing HKC055AP4 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for HKC055AP4, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
Yes, 100% of HKC055AP4 Thin Section Angular Contact Ball Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
