618/670 MA
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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618/670 MA Bearing Product Overview & Core Advantages
The 618/670 MA is a single row deep groove ball bearing designed for exceptional performance in demanding applications. This metric series bearing is characterized by its open design and P6 tolerance class, ensuring high running accuracy and reliability. Its primary advantage lies in its ability to accommodate high radial loads, making it an ideal choice for applications requiring robust support and smooth operation. The combination of a large bore diameter and optimized internal geometry provides a compact and highly effective solution for heavy-duty machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 618 | Series designation for extra light series, deep groove ball bearings. |
| 670 | Bore diameter in millimeters (670 mm). |
| MA | Indicates a brass cage (Note: Specification lists Stainless Steel cage, "MA" is a common designation for brass. Please verify cage material for this specific bearing). |
618/670 MA Bearing Structural Features & Performance Benefits
High Load Capacity: Engineered with a single row deep groove raceway, this bearing is optimized to support high radial dynamic load ratings of 99366 lbf and radial static load ratings of 224809 lbf, providing dependable performance under significant stress.
Precision Engineering: Manufactured to a P6 tolerance class, it offers superior dimensional accuracy and running precision, which is critical for applications with strict alignment and vibration requirements.
Robust Material Construction: The use of Chrome Steel for rings and balls, combined with a Stainless Steel cage, ensures high durability, corrosion resistance, and a long operational lifespan.
Standard Internal Clearance: Features a CN (Normal) radial internal clearance, making it suitable for a wide range of standard operating conditions and fits.
Open Design for Flexibility: The open seal type allows for the application of custom lubrication schemes, providing flexibility for specific operational environments and maintenance schedules.
618/670 MA Bearing Typical Application Areas
The 618/670 MA is ideally suited for heavy industrial machinery and equipment requiring large bore bearings with high radial load capacity. Common applications include:
- Large Electric Motors and Generators
- Industrial Gearboxes and heavy-duty power transmission systems
- Vibrating Screens and other mining equipment
- Crane Sheaves and material handling systems
- Wind Turbine Main Shafts (as a support bearing)
- Large Pumps and Compressors
