Manufactured by CHG Bearing, the EE420801D/421450 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 203.2 mm bore diameter, a 368.3 mm outer diameter, and a 158.75 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.
EE420801D/421450 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | EE420801D/421450 |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 3 |
| Dimensions | |
| Bore Diameter (d) | 203.2 mm |
| Width (B) | 158.75 mm |
| Outer Diameter (D) | 368.3 mm |
| Bore Diameter Tolerance | 0 – +0.013 mm |
| Outside Diameter Tolerance | 0 – +0.025 mm |
| Inner Ring Chamfer | 3.2 mm |
| Outer Ring Chamfer | 3.2 mm |
| Inner Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Outer Ring Assembly Width | 158.75 mm |
| Outer Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Shaft Abutment Diameter | 237.5 mm |
| Housing Abutment Diameter | 355.9 mm |
| Lubrication Hole Diameter | 6 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1610 kN |
| Basic Static Load Rating C0 (kN) | 2920 kN |
| Material | |
| Mass (kg) | 75.4 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 12 mm |
| Roller Material | Bearing Steel |
EE420801D/421450 368.3 mm 203.2 mm Frequently Asked Questions about EE420801D/421450 Double 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 EE420801D/421450. 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 EE420801D/421450 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (203.2 mm x 368.3 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing EE420801D/421450 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.
Model EE420801D/421450 is manufactured by CHG Bearing in standard Normal clearance (CN) for ambient temperature transmission, and C3 or C4 clearance for heavy duty applications. C3 clearance compensates for radial shrinkage caused by tight shaft press-fits (bore 203.2 mm) and steep thermal gradients between inner and outer rings.
