Manufactured by CHG Bearing, the HWAA1349HP4 is a precision Super Duplex Angular Contact Ball Bearings. Key dimensional parameters include a 77.7875 mm bore diameter, a 98.425 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.
HWAA1349HP4 - Super Duplex Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HWAA1349HP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Super Duplex Angular Contact Ball Bearing |
| Series | AA13 |
| Seal Type | Open / Single-Sided Sealed / Double-Sided Sealed |
| Load Direction | Combined Radial and Axial |
| Row Configuration | Double Row |
| Dimensions | |
| Bore Diameter (d) | 77.7875 mm |
| Width (B) | 15.875 mm |
| Outer Diameter (D) | 98.425 mm |
| Outside Diameter Tolerance | -0.01-0 mm |
| Width Tolerance | -0.38-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 85.144 mm |
| Outer-Ring Land Diameter (L2 / D1) | 91.07 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 28000 N |
| Basic Dynamic Radial Load Rating Cr (N) | 13900 N |
| Basic Static Axial Load Rating C0a (N) | 15500 N |
| Basic Dynamic Axial Load Rating Ca (N) | N/A N |
| Material | |
| Mass (kg) | 0.26Kg 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 |
HWAA1349HP4 98.425 mm 77.7875 mm 15.875 mm 91.07 mm 85.144 mm Frequently Asked Questions about HWAA1349HP4 Super Duplex Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting HWAA1349HP4 over a 77.7875 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 CHG Bearing HWAA1349HP4 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies HWAA1349HP4 with a precision bore diameter (d) of 77.7875 mm, an outside diameter (D) of 98.425 mm, and a nominal ring width (B) of 15.875 mm. This configuration yields an effective cross-sectional wall thickness of 10.3 mm and an envelope ratio (D/d) of 1.27, delivering compact rigidity for OEM machinery housings.
Absolutely. The CHG Bearing HWAA1349HP4 Super Duplex Angular Contact Ball Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF HWAA1349HP4, FAG HWAA1349HP4, NSK HWAA1349HP4. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
