Manufactured by CHG Bearing, the 3806/558.8/HC is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 558.8 mm bore diameter, a 736.6 mm outer diameter, and a 450 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.
3806/558.8/HC - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 3806/558.8/HC |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 558.8 mm |
| Width (B) | 450 mm |
| Outer Diameter (D) | 736.6 mm |
| Bore Diameter Tolerance | 0 – +0.051 mm |
| Outside Diameter Tolerance | 0 – +0.076 mm |
| Inner Ring Chamfer | 5 min mm |
| Outer Ring Chamfer | 5 min mm |
| Inner Ring Assembly Width Tolerance | -1.2 – +1.2 mm |
| Outer Ring Assembly Width | 450 mm |
| Outer Ring Assembly Width Tolerance | -1.2 – +1.2 mm |
| Shaft Abutment Diameter | 597 mm |
| Housing Abutment Diameter | 670 mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 7126 kN |
| Basic Static Load Rating C0 (kN) | 23487 kN |
| Material | |
| Mass (kg) | 509.4 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | Grade 45 Steel |
| Lubrication Groove Width | 16 mm |
3806/558.8/HC 736.6 mm 558.8 mm 450 mm Frequently Asked Questions about 3806/558.8/HC Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Engineered according to international ISO boundary plans, CHG Bearing supplies 3806/558.8/HC with a precision bore diameter (d) of 558.8 mm, an outside diameter (D) of 736.6 mm, and a nominal ring width (B) of 450 mm. This configuration yields an effective cross-sectional wall thickness of 88.9 mm and an envelope ratio (D/d) of 1.32, delivering compact rigidity for OEM machinery housings.
Each 3806/558.8/HC produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (558.8 mm bore side) ensures perfect planar contact without edge binding.
Model 3806/558.8/HC 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 558.8 mm) and steep thermal gradients between inner and outer rings.
For international ocean and air freight, CHG Bearing packs 3806/558.8/HC 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.
