Manufactured by CHG Bearing, the HKB055CP4 is a precision Thin Section Deep Groove Ball Bearings. Key dimensional parameters include a 139.7 mm bore diameter, a 155.575 mm outer diameter, and a 7.9375 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.
HKB055CP4 - Thin Section Deep Groove Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKB055CP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Series | KB |
| Seal Type | Open |
| Load Direction | Radial and Bidirectional Axial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 139.7 mm |
| Width (B) | 7.9375 mm |
| Outer Diameter (D) | 155.575 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) | 145.5674 mm |
| Outer-Ring Land Diameter (L2 / D1) | 149.6822 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 10490 N |
| Basic Dynamic Radial Load Rating Cr (N) | 4370 N |
| Basic Static Axial Load Rating C0a (N) | N/A N |
| Basic Dynamic Axial Load Rating Ca (N) | N/A 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 | -0.035-0.021 mm |
HKB055CP4 155.575 mm 139.7 mm 7.9375 mm Frequently Asked Questions about HKB055CP4 Thin Section Deep Groove Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing HKB055CP4 Thin Section Deep Groove Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF HKB055CP4, FAG HKB055CP4, NSK HKB055CP4. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
In its sealed configuration (Open), CHG Bearing pre-charges HKB055CP4 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.
Yes, 100% of HKB055CP4 Thin Section Deep Groove 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.
The Open engineered for HKB055CP4 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
