618/1120 MA
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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618/1120 MA Bearing Product Overview & Core Advantages
The 618/1120 MA is a single row deep groove ball bearing engineered for exceptional performance in demanding industrial applications. This metric series bearing features a large 1120 mm bore diameter and is designed primarily to accommodate high radial loads. Manufactured to a P6 tolerance class, it offers superior running accuracy, making it ideal for applications requiring high precision and reliability. Its robust construction ensures long service life and stable operation under challenging conditions.
618/1120 MA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| 618 | Series designation for extra light, thin-section deep groove ball bearings. |
| 1120 | Indicates the bore diameter of 1120 mm. |
| MA | Denotes a brass cage (Note: Specification lists Stainless Steel cage, MA is a common designation for brass). The cage provides excellent guidance and stability. |
618/1120 MA Bearing Structural Features & Performance Benefits
- High Load Capacity: With a dynamic load rating of 166,583 lbf and a static load rating of 494,580 lbf, this bearing is built to handle significant radial forces in heavy-duty machinery.
- Precision Engineering: The P6 tolerance class ensures tight dimensional control and high running accuracy, which is critical for minimizing vibration and noise.
- Robust Material Construction: Components made from Chrome Steel (rings and balls) and a Stainless Steel cage offer high strength, wear resistance, and good corrosion resistance.
- Standard Internal Clearance: The CN radial internal clearance is suitable for a wide range of standard operating conditions and fits.
- Open Design: The open seal type allows for easy re-lubrication and is optimal for applications where heat dissipation is a priority.
618/1120 MA Bearing Typical Application Areas
The 618/1120 MA is suited for large-scale industrial equipment where high radial load capacity and precision are paramount. Key sectors include:
- Large Industrial Gearboxes and power transmission systems.
- Heavy-Duty Machinery such as rolling mills and mining equipment.
- Large Pumps and compressors.
- Wind Turbine Main Shafts and other renewable energy equipment.
- Paper and Steel Processing Machinery.
