Manufactured by CHG Bearing, the HM266446TD/HM266410 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 381.264 mm bore diameter, a 546.1 mm outer diameter, and a 206.375 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.
HM266446TD/HM266410 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HM266446TD/HM266410 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 381.264 mm |
| Width (B) | 206.375 mm |
| Outer Diameter (D) | 546.1 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 6.4 mm |
| Outer Ring Chamfer | 3.2 mm |
| Inner Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Outer Ring Assembly Width | 193.675 mm |
| Outer Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Shaft Abutment Diameter | 415.3 mm |
| Housing Abutment Diameter | 525 mm |
| Lubrication Hole Diameter | 8 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2730 kN |
| Basic Static Load Rating C0 (kN) | 6780 kN |
| Material | |
| Mass (kg) | 159 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 16 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
HM266446TD/HM266410 546.1 mm 381.264 mm Frequently Asked Questions about HM266446TD/HM266410 Double 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 HM266446TD/HM266410 with a precision bore diameter (d) of 381.264 mm, an outside diameter (D) of 546.1 mm, and a nominal ring width (B) of 206.375 mm. This configuration yields an effective cross-sectional wall thickness of 82.4 mm and an envelope ratio (D/d) of 1.43, delivering compact rigidity for OEM machinery housings.
Every production batch of CHG Bearing HM266446TD/HM266410 Double Row Tapered Roller Bearings comes with complete traceability. Upon shipment, CHG Bearing can provide EN 10204 3.1 Material Test Reports (MTR), Certificates of Conformity (CoC), spectral chemical composition analysis, and dimensional inspection sheets.
To ensure optimum performance of CHG Bearing HM266446TD/HM266410 Double Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 381.264 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.
Standard batches of CHG Bearing HM266446TD/HM266410 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.
