Manufactured by CHG Bearing, the HM266449DW is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 384.175 mm bore diameter, a 546.1 mm outer diameter, and a 400.05 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.
HM266449DW - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HM266449DW |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 384.175 mm |
| Width (B) | 400.05 mm |
| Outer Diameter (D) | 546.1 mm |
| Bore Diameter Tolerance | 0 – +0.051 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 3.3 min mm |
| Outer Ring Chamfer | 6.4 min mm |
| Inner Ring Assembly Width Tolerance | -1.524 – +1.524 mm |
| Outer Ring Assembly Width | 400.05 mm |
| Outer Ring Assembly Width Tolerance | -1.524 – +1.524 mm |
| Shaft Abutment Diameter | 418.7 mm |
| Housing Abutment Diameter | 502 mm |
| Lubrication Hole Diameter | 8 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 6120 kN |
| Basic Static Load Rating C0 (kN) | 16400 kN |
| Material | |
| Mass (kg) | 318 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
| Lubrication Groove Width | 16 mm |
HM266449DW 546.1 mm 384.175 mm 400.05 mm Frequently Asked Questions about HM266449DW Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Sourcing HM266449DW directly from CHG Bearing eliminates intermediate brokerage markups while granting you factory-direct engineering backup, rigorous ISO-certified quality assurance, competitive volume wholesale pricing, and dependable supply chain stability for Four-Row Tapered Roller Bearings.
Engineered according to international ISO boundary plans, CHG Bearing supplies HM266449DW with a precision bore diameter (d) of 384.175 mm, an outside diameter (D) of 546.1 mm, and a nominal ring width (B) of 400.05 mm. This configuration yields an effective cross-sectional wall thickness of 81.0 mm and an envelope ratio (D/d) of 1.42, delivering compact rigidity for OEM machinery housings.
Absolutely. The CHG Bearing HM266449DW Four-Row Tapered Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF HM266449DW, FAG HM266449DW, NSK HM266449DW. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
To ensure optimum performance of CHG Bearing HM266449DW Four-Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 384.175 mm bore. For the 546.1 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
