Manufactured by CHG Bearing, the HRA7008 is a precision HRAU Series Crossed Roller Bearings. Key dimensional parameters include a 70 mm bore diameter, a 86 mm outer diameter, and a 8 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.
HRA7008 - HRAU Series Crossed Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HRA7008 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Crossed Roller Bearing |
| Series | HRA |
| Design Type | Split Outer Ring |
| Seal Type | Single-sided or Double-sided Sealed |
| Dimensions | |
| Roller Pitch Circle Diameter dp | 77 mm |
| Bore Diameter (d) | 70 mm |
| Width (B) | 8 mm |
| Outer Diameter (D) | 86 mm |
| Minimum Chamfer Dimension rmin | 0.5 mm |
| Inner Ring Shoulder Diameter ds | 73.5 mm |
| Outer Ring Shoulder Diameter Dh | 80.5 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 5.98 kN |
| Basic Static Radial Load Rating C0r (kN) | 9.8 kN |
| Reference Data | |
| Reference Mass (kg) | 0.1 kg |
86 mm 70 mm 8 mm HRA7008 Frequently Asked Questions about HRA7008 HRAU Series Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of HRA7008 HRAU Series Crossed Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
As standard production, CHG Bearing subjects HRA7008 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
Engineered according to international ISO boundary plans, CHG Bearing supplies HRA7008 with a precision bore diameter (d) of 70 mm, an outside diameter (D) of 86 mm, and a nominal ring width (B) of 8 mm. This configuration yields an effective cross-sectional wall thickness of 8.0 mm and an envelope ratio (D/d) of 1.23, delivering compact rigidity for OEM machinery housings.
For international ocean and air freight, CHG Bearing packs HRA7008 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.
