Manufactured by CHG Bearing, the 71828 is a precision Angular Contact Ball Bearings（718 / 719 SERIES）. Key dimensional parameters include a 140 mm bore diameter, a 175 mm outer diameter, and a 18 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.
71828 - Angular Contact Ball Bearings（718 / 719 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 71828 |
| 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) | 140 mm |
| Width (B) | 18 mm |
| Outer Diameter (D) | 175 mm |
| Bore Diameter Tolerance | -0.025-0 mm |
| Outside Diameter Tolerance | -0.025-0 mm |
| Width Tolerance | -0.25-0 mm |
| Performance | |
| Basic Dynamic Radial Load Rating Cr (kN) | 44.9 kN |
| Basic Static Radial Load Rating C0r (kN) | 62 kN |
| Limiting Speed – Grease (r/min) | 6300 r/min |
| Limiting Speed – Oil (r/min) | 10000 (r/min) |
| Material | |
| Mass (kg) | 0.8 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 | 0.018-0.048 mm |
71828 175 mm 140 mm 18 mm Frequently Asked Questions about 71828 Angular Contact Ball Bearings（718 / 719 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To safeguard CHG Bearing 71828 against fretting wear and false brinelling during transport or vibration, assemble mating surfaces (140 mm x 175 mm) using anti-fretting mounting paste. Maintaining strict alignment and avoiding prolonged static vibration will preserve raceway polish.
The CHG Bearing 71828 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.
When fitting 71828 over a 140 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.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 71828. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
