Manufactured by CHG Bearing, the HKB050AP0 is a precision Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 127 mm bore diameter, a 142.875 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.

HKB050AP0 - Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HKB050AP0 |
| 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) | 127 mm |
| Width (B) | 7.9375 mm |
| Outer Diameter (D) | 142.875 mm |
| Bore Diameter Tolerance | -0.025-0 mm |
| Outside Diameter Tolerance | -0.02-0 mm |
| Width Tolerance | -0.127-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 132.8674 mm |
| Outer-Ring Land Diameter (L2 / D1) | 136.9822 mm |
| Counterbore Diameter L3 | 138.684 mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 11110 N |
| Basic Dynamic Radial Load Rating Cr (N) | 4340 N |
| Basic Static Axial Load Rating C0a (N) | 32050 N |
| Basic Dynamic Axial Load Rating Ca (N) | 10710 N |
| Material | |
| Mass (kg) | 0.168 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 |
HKB050AP0 142.875 mm 127 mm 7.9375 mm Frequently Asked Questions about HKB050AP0 Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To match diverse operational dynamics, CHG Bearing supplies HKB050AP0 with multiple cage configurations: high-strength pressed steel ribbon cages for standard duty, solid machined brass cages (M/CA) for heavy vibration and shock loads, or lightweight glass-fiber reinforced polyamide cages (TN9/TVP) for high acceleration and ultra-low noise.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for HKB050AP0, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
When fitting HKB050AP0 over a 127 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
The Open engineered for HKB050AP0 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.
