618/900 MA
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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618/900 MA Bearing Product Overview & Core Advantages
The 618/900 MA is a single row deep groove ball bearing engineered for exceptional performance in demanding industrial applications. This metric series bearing features a large 900 mm bore and is designed primarily to handle significant radial loads. Manufactured to a P6 tolerance class, it guarantees high running accuracy and dimensional consistency. Its open design allows for versatile lubrication options, while the use of high-grade chrome steel for rings and balls ensures superior durability and a long operational life, making it a reliable choice for heavy-duty machinery.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 618 | Series designation for deep groove ball bearings. |
| 900 | Bore diameter in millimeters (900 mm). |
| MA | Indicates a brass cage (Note: Specification lists Stainless Steel cage, please verify for this specific model). |
618/900 MA Bearing Structural Features & Performance Benefits
High Load Capacity: With a dynamic load rating of 138,932 lbf and a static load rating of 359,694 lbf, this bearing is built to withstand substantial radial forces in heavy machinery.
Precision Engineering: The P6 tolerance class ensures tight dimensional control and high running accuracy, which is critical for applications requiring precise shaft positioning.
Robust Construction: The combination of chrome steel rings and balls provides excellent resistance to wear and fatigue. The stainless steel cage offers high strength and corrosion resistance, contributing to stable operation.
Standard Internal Clearance: The CN radial internal clearance is suitable for a wide range of common operating conditions.
Versatile Temperature Range: Operates effectively within a temperature range of -30°C to 120°C, accommodating various industrial environments.
618/900 MA Bearing Typical Application Areas
This large bore, high-capacity bearing is ideally suited for:
- Heavy Industrial Gearboxes
- Large Electric Motors and Generators
- Mining and Construction Equipment
- Vibrating Screens and Crushers
- Wind Turbine Main Shafts
- Paper Mill and Steel Mill Machinery
