Manufactured by CHG Bearing, the HKB025AP0 is a precision Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 63.5 mm bore diameter, a 79.375 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.

HKB025AP0 - Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKB025AP0 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Angular Contact Ball Bearing |
| Series | KB |
| Seal Type | Open |
| Load Direction | Combined Radial and Unidirectional Axial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 63.5 mm |
| Width (B) | 7.9375 mm |
| Outer Diameter (D) | 79.375 mm |
| Bore Diameter Tolerance | -0.015-0 mm |
| Outside Diameter Tolerance | -0.0127-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 69.3674 mm |
| Outer-Ring Land Diameter (L2 / D1) | 73.4822 mm |
| Counterbore Diameter L3 | 75.2856 mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 5960 N |
| Basic Dynamic Radial Load Rating Cr (N) | 3000 N |
| Basic Static Axial Load Rating C0a (N) | 17160 N |
| Basic Dynamic Axial Load Rating Ca (N) | 7070 N |
| Material | |
| Mass (kg) | 0.086 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 | P0 |
| Radial Internal Clearance | N/A mm |
HKB025AP0 79.375 mm 63.5 mm 7.9375 mm Frequently Asked Questions about HKB025AP0 Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing HKB025AP0 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (63.5 mm x 79.375 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for HKB025AP0. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To ensure optimum performance of CHG Bearing HKB025AP0 Thin Section Angular Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 63.5 mm bore. For the 79.375 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
To extend the trouble-free lifespan of CHG Bearing HKB025AP0, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
