Manufactured by CHG Bearing, the HWAD1288HP4 is a precision Super Duplex Angular Contact Ball Bearings. Key dimensional parameters include a 139.7 mm bore diameter, a 158.75 mm outer diameter, and a 15.875 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.
HWAD1288HP4 - Super Duplex Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HWAD1288HP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super Duplex Angular Contact Ball Bearing |
| Series | AD12 |
| Seal Type | Open / Single-Sided Sealed / Double-Sided Sealed |
| Load Direction | Combined Radial and Axial |
| Row Configuration | Double Row |
| Dimensions | |
| Bore Diameter (d) | 139.7 mm |
| Width (B) | 15.875 mm |
| Outer Diameter (D) | 158.75 mm |
| Outside Diameter Tolerance | -0.012-0 mm |
| Width Tolerance | -0.5-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 146.7612 mm |
| Outer-Ring Land Diameter (L2 / D1) | 151.6888 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 41400 N |
| Basic Dynamic Radial Load Rating Cr (N) | 12900 N |
| Basic Static Axial Load Rating C0a (N) | 21400 N |
| Basic Dynamic Axial Load Rating Ca (N) | N/A N |
| Material | |
| Mass (kg) | 0.41Kg kg |
| Ring Material | Stainless Steel / Bearing Steel |
| Cage Material | Brass / Polyimide / PEEK / Phenolic Resin / Phenolic Resin Fabric Laminate |
| Ball Material | Ceramic / Stainless Steel / Bearing Steel |
| Operating Temperature Range (°C) | -50 to +100 °C °C |
| Precision Class | P4 |
| Radial Internal Clearance | N/A mm |
HWAD1288HP4 158.75 mm 139.7 mm 15.875 mm 151.6888 mm 146.7612 mm Frequently Asked Questions about HWAD1288HP4 Super Duplex Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting HWAD1288HP4 over a 139.7 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.
Yes, CHG Bearing works closely with industrial OEMs and brand distributors. We offer turnkey custom engineering for HWAD1288HP4, including laser-etched customer logos, custom internal radial clearances, specialized grease formulations, and bespoke protective packaging.
To match diverse operational dynamics, CHG Bearing supplies HWAD1288HP4 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.
To ensure optimum performance of CHG Bearing HWAD1288HP4 Super Duplex Angular Contact Ball Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 139.7 mm bore. For the 158.75 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
