Manufactured by CHG Bearing, the 718/750 is a precision Angular Contact Ball Bearings（718 / 719 SERIES）. Key dimensional parameters include a 750 mm bore diameter, a 920 mm outer diameter, and a 78 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.
718/750 - Angular Contact Ball Bearings（718 / 719 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 718/750 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Angular Contact Ball Bearing |
| Series | 718 |
| Seal Type | Open / Contact Seal Options |
| Load Direction | Radial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 750 mm |
| Width (B) | 78 mm |
| Outer Diameter (D) | 920 mm |
| Bore Diameter Tolerance | -0.075-0 mm |
| Outside Diameter Tolerance | -0.1-0 mm |
| Width Tolerance | -0.75-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 585 kN |
| Basic Static Radial Load Rating C0r (kN) | 1620 kN |
| Limiting Speed – Grease (r/min) | 400 r/min |
| Limiting Speed – Oil (r/min) | 530 (r/min) |
| Material | |
| Mass (kg) | 110 kg |
| Ring Material | Stainless Steel / Bearing Steel |
| Cage Material | Brass / PEEK / Polyimide / Phenolic Resin Fabric Laminate |
| Ball Material | Stainless Steel / Bearing Steel / Ceramic |
| Operating Temperature Range (°C) | -50 to +100 °C |
| Precision Class | P0 |
| Radial Internal Clearance | 0.120-0.290 mm |
718/750 920 mm 750 mm 78 mm Frequently Asked Questions about 718/750 Angular Contact Ball Bearings（718 / 719 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Yes, 100% of 718/750 Angular Contact Ball Bearings（718 / 719 SERIES） 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 718/750 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.
To ensure optimum performance of CHG Bearing 718/750 Angular Contact Ball Bearings（718 / 719 SERIES） under general rotational loads, our application engineers advise an inner-ring shaft tolerance of m5 or k5 for the 750 mm bore. For the 920 mm outer ring, an H7 or J7 housing bore fit is recommended to eliminate creep while accommodating normal thermal gradient expansion.
Each 718/750 produced in CHG Bearing manufacturing facilities features accurately profiled corner chamfers complying with DIN 5412 / ISO standard corner radii. When designing mating shafts and housing shoulders, machining an undercut or fillet radius strictly within the inner ring clearance limit (750 mm bore side) ensures perfect planar contact without edge binding.
