Manufactured by CHG Bearing, the 777/750 is a precision Four-Row Tapered Roller Bearings. Key dimensional parameters include a 750 mm bore diameter, a 1130 mm outer diameter, and a 690 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.
777/750 - Four-Row Tapered Roller Bearings
Technical Specifications
| Overview | |
|---|---|
| Part Number | 777/750 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Four Row Tapered Roller Bearing |
| Number of Rows | Four Row |
| Tolerance Class | P0 |
| Dimensions | |
| Bore Diameter (d) | 750 mm |
| Width (B) | 690 mm |
| Outer Diameter (D) | 1130 mm |
| Bore Diameter Tolerance | -0.075 – 0 mm |
| Outside Diameter Tolerance | -0.125 – 0 mm |
| Inner Ring Chamfer | 7.5 min mm |
| Outer Ring Chamfer | 7.5 min mm |
| Inner Ring Assembly Width Tolerance | -1.0 – 0 mm |
| Outer Ring Assembly Width | 690 mm |
| Outer Ring Assembly Width Tolerance | -1.0 – 0 mm |
| Shaft Abutment Diameter | 790 mm |
| Housing Abutment Diameter | 1076 mm |
| Lubrication Hole Diameter | 16 mm |
| Performance | |
| Basic Dynamic Load Rating C (kN) | 17900 kN |
| Basic Static Load Rating C0 (kN) | 49500 kN |
| Material | |
| Mass (kg) | 2500 kg |
| Ring Material | Case-Hardened Steel / Bearing Steel |
| Rolling Element Material | Case-Hardened Steel / Bearing Steel |
| Cage Material | Grade 45 Steel / 08Al Steel / Grade 10 Steel |
| Lubrication Groove Width | 30 mm |
777/750 1130 mm 750 mm 690 mm Frequently Asked Questions about 777/750 Four-Row Tapered Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
The Open Type engineered for 777/750 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.
Built for demanding industrial environments, the 777/750 Four-Row Tapered Roller Bearings by CHG Bearing boasts a dynamic load rating (Cr) of standard dynamic and a static load threshold (C0r) of standard static. The optimized internal raceway geometry balances stress distribution, mitigating edge loading even when operating under peak mechanical stresses.
To safeguard CHG Bearing 777/750 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (750 mm x 1130 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
Every production batch of CHG Bearing 777/750 Four-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.
