Manufactured by CHG Bearing, the HKB030XP4 is a precision Thin Section Four-Point Contact Ball Bearings. Key dimensional parameters include a 76.2 mm bore diameter, a 92.075 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.

HKB030XP4 - Thin Section Four-Point Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKB030XP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four-Point Contact Ball Bearing |
| Series | KB |
| Seal Type | Open |
| Load Direction | Radial, Bidirectional Axial and Moment |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 76.2 mm |
| Width (B) | 7.9375 mm |
| Outer Diameter (D) | 92.075 mm |
| Bore Diameter Tolerance | -0.005-0 mm |
| Outside Diameter Tolerance | -0.0076-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 82.0674 mm |
| Outer-Ring Land Diameter (L2 / D1) | 86.1822 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 5960 N |
| Basic Dynamic Radial Load Rating Cr (N) | 4150 N |
| Basic Static Axial Load Rating C0a (N) | 14890 N |
| Basic Dynamic Axial Load Rating Ca (N) | 6400 N |
| Material | |
| Mass (kg) | 0.109 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 | -0.03-0.016 mm |
HKB030XP4 92.075 mm 76.2 mm 7.9375 mm Frequently Asked Questions about HKB030XP4 Thin Section Four-Point Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Each HKB030XP4 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (76.2 mm bore side) ensures perfect planar contact without edge binding.
Built for demanding industrial environments, the HKB030XP4 Thin Section Four-Point Contact Ball Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
Yes, 100% of HKB030XP4 Thin Section Four-Point 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.
The CHG Bearing HKB030XP4 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.
