Manufactured by CHG Bearing, the EE153050/153103D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 127 mm bore diameter, a 258.763 mm outer diameter, and a 177.8 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.

EE153050/153103D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | EE153050/153103D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 127 mm |
| Width (B) | 177.8 mm |
| Outer Diameter (D) | 258.763 mm |
| Bore Diameter Tolerance | -0.04 – 0 mm |
| Outside Diameter Tolerance | -0.05 – 0 mm |
| Inner Ring Chamfer | 5 mm |
| Outer Ring Chamfer | 6 mm |
| Inner Ring Assembly Width Tolerance | -0.40 – 0 mm |
| Outer Ring Assembly Width | 148 mm |
| Outer Ring Assembly Width Tolerance | -0.50 – 0 mm |
| Shaft Abutment Diameter | 393.8 mm |
| Housing Abutment Diameter | 528 mm |
| Lubrication Hole Diameter | 8 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 1930 kN |
| Basic Static Load Rating C0 (kN) | 3900 kN |
| Material | |
| Mass (kg) | 122 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 16 mm |
| Roller Material | Bearing Steel |
EE153050/153103D 258.763 mm 127 mm Frequently Asked Questions about EE153050/153103D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Absolutely. The CHG Bearing EE153050/153103D Double Row Tapered Roller Bearings is a 1:1 direct interchange for renowned brands, matching part numbers: SKF EE153050/153103D, FAG EE153050/153103D, NSK EE153050/153103D. It shares identical envelope boundary dimensions, load capacities, and shaft fits, allowing instant drop-in replacement without retrofitting your machinery.
Standard batches of CHG Bearing EE153050/153103D 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.
Following standard ISO 281 fatigue calculation guidelines, the nominal rating life (L10) of CHG Bearing EE153050/153103D correlates its dynamic capacity (standard dynamic) with equivalent dynamic loads. In controlled industrial settings with proper contamination-free filtration, field data confirms continuous operational longevity exceeding 20,000 to 50,000 service hours.
Every production batch of CHG Bearing EE153050/153103D 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.
