Manufactured by CHG Bearing, the HRA12008 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.
HRA12008 - HRAU Series Crossed Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HRA12008 |
| 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 | 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 HRA12008 Frequently Asked Questions about HRA12008 HRAU Series Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing HRA12008 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (120 mm x 136 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
For international ocean and air freight, CHG Bearing packs HRA12008 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.
Absolutely. The CHG Bearing HRA12008 HRAU Series Crossed Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF HRA12008, FAG HRA12008, NSK HRA12008. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing HRA12008 correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
