Manufactured by CHG Bearing, the EE790120/790223D is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 304.8 mm bore diameter, a 558.8 mm outer diameter, and a 298.45 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.
EE790120/790223D - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | EE790120/790223D |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 304.8 mm |
| Width (B) | 298.45 mm |
| Outer Diameter (D) | 558.8 mm |
| Bore Diameter Tolerance | 0 – +0.051 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 6.4 mm |
| Outer Ring Chamfer | 3.2 mm |
| Inner Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Outer Ring Assembly Width | 163.513 mm |
| Outer Ring Assembly Width Tolerance | -0.508 – +0.711 mm |
| Shaft Abutment Diameter | 404.3 mm |
| Housing Abutment Diameter | 550 mm |
| Lubrication Hole Diameter | 8 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 2880 kN |
| Basic Static Load Rating C0 (kN) | 5340 kN |
| Material | |
| Mass (kg) | 174 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 16 mm |
| Roller Material | Bearing Steel |
EE790120/790223D 558.8 mm 304.8 mm Frequently Asked Questions about EE790120/790223D Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To extend the trouble-free lifespan of CHG Bearing EE790120/790223D, preventive maintenance routines should monitor operating housing temperature (normally maintaining below 70°C) and conduct regular vibration FFT analysis to identify early raceway micro-pitting before unexpected line halts occur.
When fitting EE790120/790223D over a 304.8 mm shaft, CHG Bearing strictly recommends uniform induction heating (controlled between 90°C and 110°C) or precision hydraulic press sleeves. Under no circumstances should direct impact blows be struck against the rings or cage, as shock loads cause brinelling indents and premature spalling.
Yes, 100% of EE790120/790223D 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.
The CHG Bearing EE790120/790223D 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.
