Manufactured by CHG Bearing, the EE91702/91113XD is a precision Double Row Tapered Roller Bearings. Key dimensional parameters include a 177.8 mm bore diameter, a 285.75 mm outer diameter, and a 136.525 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.
EE91702/91113XD - Double Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | EE91702/91113XD |
| Brand | CHG® |
| Bearing | Double Row Tapered Roller Bearing |
| Characteristics | |
| Series | 370000 |
| Number of Rows | Double Row |
| Tolerance Class | Class 4 |
| Dimensions | |
| Bore Diameter (d) | 177.8 mm |
| Width (B) | 136.525 mm |
| Outer Diameter (D) | 285.75 mm |
| Bore Diameter Tolerance | 0 – +0.051 mm |
| Outside Diameter Tolerance | 0 – +0.051 mm |
| Inner Ring Chamfer | 3.3 min mm |
| Outer Ring Chamfer | 6.4 min mm |
| Inner Ring Assembly Width Tolerance | N/A mm |
| Outer Ring Assembly Width | 209.55 mm |
| Outer Ring Assembly Width Tolerance | -0.762 – +0.762 mm |
| Shaft Abutment Diameter | 455.6 mm |
| Housing Abutment Diameter | 545 mm |
| Lubrication Hole Diameter | 15 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 3780 kN |
| Basic Static Load Rating C0 (kN) | 9600 kN |
| Material | |
| Mass (kg) | 200 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 21 mm |
| Roller Material | Case-Hardened Steel / Bearing Steel |
EE91702/91113XD 285.75 mm 177.8 mm 136.525 mm Frequently Asked Questions about EE91702/91113XD Double Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
In its sealed configuration (Open Type), CHG Bearing pre-charges EE91702/91113XD with premium wide-temperature lithium-complex or polyurea grease, calibrated to a 30%–35% cavity volume ratio. For open-type variants, synthetic PAO or refined mineral lubricating oils with appropriate EP (Extreme Pressure) additives should be circulated.
Standard batches of CHG Bearing EE91702/91113XD 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.
The Open Type engineered for EE91702/91113XD by CHG Bearing utilizes precision non-contact metal shields or reinforced NBR/FKM contact lip seals. This barrier prevents particulate ingress, washdown fluids, and abrasive dust from reaching the raceways while eliminating grease leakage under centrifugal forces.
The CHG Bearing EE91702/91113XD 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.
