Manufactured by CHG Bearing, the 3806/685.8/HCVP5 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 685.8 mm bore diameter, a 876.3 mm outer diameter, and a 352.425 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.
3806/685.8/HCVP5 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 3806/685.8/HCVP5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 685.8 mm |
| Width (B) | 352.425 mm |
| Outer Diameter (D) | 876.3 mm |
| Bore Diameter Tolerance | 0 – +0.038 mm |
| Outside Diameter Tolerance | 0 – +0.038 mm |
| Inner Ring Chamfer | 3.3 min mm |
| Outer Ring Chamfer | 6.4 min mm |
| Inner Ring Assembly Width Tolerance | -1.5 – +1.5 mm |
| Outer Ring Assembly Width | 355.6 mm |
| Outer Ring Assembly Width Tolerance | -1.5 – +1.5 mm |
| Shaft Abutment Diameter | 717 mm |
| Housing Abutment Diameter | 831 mm |
| Lubrication Hole Diameter | 12 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 6170 kN |
| Basic Static Load Rating C0 (kN) | 19900 kN |
| Material | |
| Mass (kg) | 504 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
| Lubrication Groove Width | 21 mm |
3806/685.8/HCVP5 876.3 mm 685.8 mm 352.425 mm Frequently Asked Questions about 3806/685.8/HCVP5 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing 3806/685.8/HCVP5 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.
When fitting 3806/685.8/HCVP5 over a 685.8 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.
To ensure optimum performance of CHG Bearing 3806/685.8/HCVP5 Four-Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 685.8 mm bore. For the 876.3 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Model 3806/685.8/HCVP5 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 685.8 mm) and steep thermal gradients between inner and outer rings.
