Manufactured by CHG Bearing, the 619/670 is a precision Deep Groove Ball Bearings（618 / 619 SERIES）. Key dimensional parameters include a 670 mm bore diameter, a 900 mm outer diameter, and a 103 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.
619/670 - Deep Groove Ball Bearings（618 / 619 SERIES）
Technical Specifications
| Overview | |
|---|---|
| Part Number | 619/670 |
| Brand | CHG® |
| Characteristics | |
| Bearing Type | Deep Groove Ball Bearing |
| Seal Type | Open / Contact Seal Options |
| Load Direction | Radial |
| Row Configuration | Single Row |
| Dimensions | |
| Bore Diameter (d) | 670 mm |
| Width (B) | 103 mm |
| Outer Diameter (D) | 900 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) | 675 kN |
| Basic Static Radial Load Rating C0r (kN) | 1460 kN |
| Limiting Speed – Grease (r/min) | 530 r/min |
| Limiting Speed – Oil (r/min) | 630 (r/min) |
| Material | |
| Mass (kg) | 181 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 | 0.110-0.260 mm |
619/670 900 mm 670 mm 103 mm Frequently Asked Questions about 619/670 Deep Groove Ball Bearings（618 / 619 SERIES）
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
Quality starts with raw material selection: CHG Bearing crafts 619/670 inner and outer rings from high-purity High-Quality Chrome Steel (GCr15/100Cr6). Our raw billets undergo vacuum degassing and secondary ESR (electroslag remelting) processes to drastically eliminate non-metallic sulfide and oxide inclusions, elevating subsurface contact fatigue resistance.
Yes, 100% of 619/670 Deep Groove Ball Bearings（618 / 619 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.
Beyond standard alloy steel, CHG Bearing can customize the 619/670 Deep Groove Ball Bearings（618 / 619 SERIES） using AISI 440C stainless steel, black oxide coating, zinc-nickel plating, or hybrid ceramic (Si3N4) balls for applications involving chemical exposure, marine salt fog, or galvanic current hazards.
As a primary manufacturer, CHG Bearing supports both trial batch evaluations and container-load supply for 619/670. Standard catalog sizes are stocked for rapid 3–7 day dispatch, while high-volume OEM production runs typically dispatch within 30–45 days.
