Manufactured by CHG Bearing, the HM266449/HM266410D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 384.175 mm bore diameter, a 546.1 mm outer diameter, and a 222.25 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.
HM266449/HM266410D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HM266449/HM266410D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 384.175 mm |
| Width (B) | 222.25 mm |
| Outer Diameter (D) | 546.1 mm |
| Bore Diameter Tolerance | 0 – +0.051 mm |
| Outside Diameter Tolerance | 0 – +0.076 mm |
| Inner Ring Chamfer | 6.4 mm |
| Outer Ring Chamfer | 6.4 mm |
| Inner Ring Assembly Width Tolerance | -0.762 – +0.762 mm |
| Outer Ring Assembly Width | 406.4 mm |
| Outer Ring Assembly Width Tolerance | -0.762 – +0.762 mm |
| Shaft Abutment Diameter | 480.1 mm |
| Housing Abutment Diameter | 710 mm |
| Lubrication Hole Diameter | 10 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 8700 kN |
| Basic Static Load Rating C0 (kN) | 19000 kN |
| Material | |
| Mass (kg) | 752 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 24 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
HM266449/HM266410D 546.1 mm 384.175 mm Frequently Asked Questions about HM266449/HM266410D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
When fitting HM266449/HM266410D over a 384.175 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.
Sourcing HM266449/HM266410D 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 Double Row Tapered Roller Bearings.
Standard batches of CHG Bearing HM266449/HM266410D 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.
Engineered according to international ISO boundary plans, CHG Bearing supplies HM266449/HM266410D 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 222.25 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.
