Manufactured by CHG Bearing, the HRE30040 is a precision HRE Series Crossed Roller Bearings. Key dimensional parameters include a 300 mm bore diameter, a 405 mm outer diameter, and a 40 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.
HRE30040 - HRE Series Crossed Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HRE30040 |
| 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 | 351.6 mm |
| Bore Diameter (d) | 300 mm |
| Width (B) | 40 mm |
| Outer Diameter (D) | 405 mm |
| Minimum Chamfer Dimension rmin | 2.5 mm |
| Inner Ring Shoulder Diameter ds | 326 mm |
| Outer Ring Shoulder Diameter Dh | 377 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 212 kN |
| Basic Static Radial Load Rating C0r (kN) | 409 kN |
| Reference Data | |
| Reference Mass (kg) | 17.2 kg |
HRE30040 405 mm 300 mm 40 mm Frequently Asked Questions about HRE30040 HRE Series Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting HRE30040 over a 300 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Standard batches of CHG Bearing HRE30040 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.
For international ocean and air freight, CHG Bearing packs HRE30040 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.
The Single-sided or Double-sided Sealed engineered for HRE30040 by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
