Manufactured by CHG Bearing, the HM266446/HM266410P5 is a precision Single Row Tapered Roller Bearings. Key dimensional parameters include a 381 mm bore diameter, a 546.1 mm outer diameter, and a N/A 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.

HM266446/HM266410P5 - Single Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | HM266446/HM266410P5 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Single Row Tapered Roller Bearing |
| Number of Rows | Single Row |
| Tolerance Class | P5 |
| Dimensions | |
| Bore Diameter (d) | 381 mm |
| Width (B) | N/A mm |
| Outer Diameter (D) | 546.1 mm |
| Outer Ring Width C | 82.55 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 6.4 min mm |
| Outer Ring Chamfer | 6.4 min mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Overall Bearing Width Tolerance | N/A mm |
| Inner Ring Width B | 104.775 mm |
| Inner Ring Width Tolerance | N/A mm |
| Outer Ring Width Tolerance | N/A mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1680 kN |
| Basic Static Load Rating C0 (kN) | 3650 kN |
| Material | |
| Mass (kg) | 77.7 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel |
HM266446/HM266410P5 546.1 mm 381 mm N/A mm Frequently Asked Questions about HM266446/HM266410P5 Single Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for HM266446/HM266410P5. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To ensure optimum performance of CHG Bearing HM266446/HM266410P5 Single Row Tapered Roller Bearings under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 381 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.
Built for demanding industrial environments, the HM266446/HM266410P5 Single Row Tapered Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
The CHG Bearing HM266446/HM266410P5 is rated for limiting speeds up to standard rated RPM under forced oil-mist or circulating oil lubrication regimes. When lubricated with factory-filled synthetic high-speed grease, safe continuous velocity is maintained at approximately 75% to 85% of the maximum nominal limit, preventing thermal runaway.
