Manufactured by CHG Bearing, the 3706/406.4 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 406.4 mm bore diameter, a 546.1 mm outer diameter, and a 138.112 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.
3706/406.4 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 3706/406.4 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 406.4 mm |
| Width (B) | 138.112 mm |
| Outer Diameter (D) | 546.1 mm |
| Bore Diameter Tolerance | 0 – +0.025 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 1.52 min mm |
| Outer Ring Chamfer | 6.35 min mm |
| Inner Ring Assembly Width Tolerance | -0.254 – +0.076 mm |
| Outer Ring Assembly Width | 138.112 mm |
| Outer Ring Assembly Width Tolerance | -0.76 – +0.76 mm |
| Shaft Abutment Diameter | N/A mm |
| Housing Abutment Diameter | N/A mm |
| Lubrication Hole Diameter | N/A mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1880 kN |
| Basic Static Load Rating C0 (kN) | 4630 kN |
| Material | |
| Mass (kg) | 99.6 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | N/A mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
3706/406.4 546.1 mm 406.4 mm Frequently Asked Questions about 3706/406.4 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects 3706/406.4 to precision bainite or martensite quenching, offering dimensional stability up to 120°C (248°F). For high-heat processing equipment, CHG Bearing also supplies custom S0 (150°C), S1 (200°C), or S2 (250°C) stabilization heat treatments upon request to prevent residual austenite transformation.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 3706/406.4. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
To safeguard CHG Bearing 3706/406.4 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (406.4 mm x 546.1 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Built for demanding industrial environments, the 3706/406.4 Double 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.
