Manufactured by CHG Bearing, the HWA721HP4 is a precision Thin Section Angular Contact Ball Bearings. Key dimensional parameters include a 33.3375 mm bore diameter, a 44.45 mm outer diameter, and a 6.35 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.
HWA721HP4 - Thin Section Angular Contact Ball Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HWA721HP4 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Angular Contact Ball Bearing |
| Series | A7 |
| Seal Type | Open / Single-Sided Sealed / Double-Sided Sealed |
| Load Direction | Combined Radial and Axial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 33.3375 mm |
| Width (B) | 6.35 mm |
| Outer Diameter (D) | 44.45 mm |
| Bore Diameter Tolerance | -0.005-0 mm |
| Outside Diameter Tolerance | -0.005-0 mm |
| Width Tolerance | -0.025-0 mm |
| Inner-Ring Land Diameter (L1 / d1) | 36.9189 mm |
| Outer-Ring Land Diameter (L2 / D1) | 40.87114 mm |
| Counterbore Diameter L3 | N/A mm |
| Performance | |
| Basic Static Radial Load Rating C0r (N) | 2530 N |
| Basic Dynamic Radial Load Rating Cr (N) | 2590 N |
| Basic Static Axial Load Rating C0a (N) | 4100 N |
| Basic Dynamic Axial Load Rating Ca (N) | N/A N |
| Material | |
| Mass (kg) | 0.022Kg 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 |
HWA721HP4 44.45 mm 33.3375 mm 6.35 mm Frequently Asked Questions about HWA721HP4 Thin Section Angular Contact Ball Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
For international ocean and air freight, CHG Bearing packs HWA721HP4 with industrial VCI anti-corrosion barrier wrapping, sealed polybags, individual cartons, and fumigated ocean-worthy wooden crates. This multi-layer barrier guarantees rust-free storage for a minimum shelf life of 24 to 36 months.
Engineered according to international ISO boundary plans, CHG Bearing supplies HWA721HP4 with a precision bore diameter (d) of 33.3375 mm, an outside diameter (D) of 44.45 mm, and a nominal ring width (B) of 6.35 mm. This configuration yields an effective cross-sectional wall thickness of 5.6 mm and an envelope ratio (D/d) of 1.33, delivering compact rigidity for OEM machinery housings.
Quality starts with raw material selection: CHG Bearing crafts HWA721HP4 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Model HWA721HP4 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 33.3375 mm) and steep thermal gradients between inner and outer rings.
