Manufactured by CHG Bearing, the HRAU12008 is a precision HRAU Series Crossed Roller Bearings. Key dimensional parameters include a 120 mm bore diameter, a 136 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.
HRAU12008 - HRAU Series Crossed Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HRAU12008 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Crossed Roller Bearing |
| Series | HRAU |
| Design Type | Integrated Inner and Outer Rings |
| Seal Type | Single-sided or Double-sided Sealed |
| Dimensions | |
| Roller Pitch Circle Diameter dp | 127 mm |
| Bore Diameter (d) | 120 mm |
| Width (B) | 8 mm |
| Outer Diameter (D) | 136 mm |
| Minimum Chamfer Dimension rmin | 0.5 mm |
| Inner Ring Shoulder Diameter ds | 123.5 mm |
| Outer Ring Shoulder Diameter Dh | 130.5 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 7.84 kN |
| Basic Static Radial Load Rating C0r (kN) | 16.5 kN |
| Reference Data | |
| Reference Mass (kg) | 0.17 kg |
136 mm 120 mm 8 mm HRAU12008 Frequently Asked Questions about HRAU12008 HRAU Series Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Single-sided or Double-sided Sealed), CHG Bearing pre-charges HRAU12008 with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Standard batches of CHG Bearing HRAU12008 conform strictly to ISO Class Normal (ABEC-1). For high-precision machine tool spindles, gearboxes, or robotics requiring tighter runouts, CHG Bearing can provide custom batches graded to ISO Class 6 (P6/ABEC-3) or ISO Class 5 (P5/ABEC-5) with 100% micrometer verification.
Quality starts with raw material selection: CHG Bearing crafts HRAU12008 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.
Every production batch of CHG Bearing HRAU12008 HRAU Series Crossed Roller Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
