Manufactured by CHG Bearing, the HRE25030 is a precision HRE Series Crossed Roller Bearings. Key dimensional parameters include a 250 mm bore diameter, a 330 mm outer diameter, and a 30 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.
HRE25030 - HRE Series Crossed Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HRE25030 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Crossed Roller Bearing |
| Series | HRE |
| Design Type | Split Inner Ring |
| Seal Type | Single-sided or Double-sided Sealed |
| Dimensions | |
| Roller Pitch Circle Diameter dp | 287.5 mm |
| Bore Diameter (d) | 250 mm |
| Width (B) | 30 mm |
| Outer Diameter (D) | 330 mm |
| Minimum Chamfer Dimension rmin | 2.5 mm |
| Inner Ring Shoulder Diameter ds | 269 mm |
| Outer Ring Shoulder Diameter Dh | 306 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 126 kN |
| Basic Static Radial Load Rating C0r (kN) | 244 kN |
| Reference Data | |
| Reference Mass (kg) | 8.1 kg |
HRE25030 330 mm 250 mm 30 mm Frequently Asked Questions about HRE25030 HRE Series Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts HRE25030 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing HRE25030 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.
To safeguard CHG Bearing HRE25030 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (250 mm x 330 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Beyond standard alloy steel, CHG Bearing can customize the HRE25030 HRE Series Crossed Roller Bearings using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
