Manufactured by CHG Bearing, the EE420750D/421450 is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 190.5 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.
EE420750D/421450 - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | EE420750D/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) | 190.5 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 | 152.4 mm |
| Outer Ring Assembly Width Tolerance | -0.406 – +0.406 mm |
| Shaft Abutment Diameter | 238.7 mm |
| Housing Abutment Diameter | 356.9 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) | 79.4 kg |
| Ring Material | Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 12 mm |
| Roller Material | Bearing Steel |
EE420750D/421450 368.3 mm 190.5 mm Frequently Asked Questions about EE420750D/421450 Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
As standard production, CHG Bearing subjects EE420750D/421450 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.
To safeguard CHG Bearing EE420750D/421450 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (190.5 mm x 368.3 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Yes, 100% of EE420750D/421450 Double Row Tapered Roller Bearings leaving CHG Bearing production lines are subjected to multi-frequency Anderometer sound testing. All units satisfy baseline Z1V1 levels, with dedicated quiet-running electric motor quality (EMQ) lots certified to Z2V2 and Z3V3 standards for silent machinery integration.
Engineered according to international ISO boundary plans, CHG Bearing supplies EE420750D/421450 with a precision bore diameter (d) of 190.5 mm, an outside diameter (D) of 368.3 mm, and a nominal ring width (B) of 158.75 mm. This configuration yields an effective cross-sectional wall thickness of 88.9 mm and an envelope ratio (D/d) of 1.93, delivering compact rigidity for OEM machinery housings.
