61860 MA
618 & 619 Series Thin Section Bearings
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Basic Information
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Performance
Materials
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61860 MA Bearing Product Overview & Core Advantages
The 61860 MA is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. This precision bearing features an open design and is manufactured to P6 tolerance class, ensuring high running accuracy and reliability. Its primary advantage lies in its robust construction, enabling it to handle significant radial loads while maintaining stable operation at moderate speeds. The use of high-grade chrome steel for rings and balls, combined with a stainless steel cage, provides excellent durability and corrosion resistance, making it a superior choice for applications requiring long service life and consistent performance.
61860 MA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 61860 | Basic Bearing Number | Denotes a metric series, single row deep groove ball bearing with a 300 mm bore diameter, 380 mm outside diameter, and 38 mm width. |
| M | Stainless Steel Cage Designation | Indicates a cage manufactured from stainless steel, offering high strength and excellent resistance to corrosion and heat. |
| A | Internal Design Modifications | Signifies optimized internal geometry for enhanced load capacity and performance. |
61860 MA Bearing Structural Features & Performance Benefits
- High Load Capacity: The deep groove raceway and robust construction enable a high radial dynamic load rating of 38,667 lbf and a radial static load rating of 55,078 lbf, making it suitable for heavy-duty applications.
- Precision Performance: Manufactured to P6 tolerance class with a CN radial internal clearance, this bearing ensures high rotational accuracy, reduced vibration, and smooth operation.
- Optimized Cage Design: The stainless steel cage (MA designation) provides superior guidance for the balls, contributing to stable operation at the limiting speed of 2,600 rpm and increased reliability.
- Material Excellence: Components made from chrome steel (rings and balls) offer high hardness and wear resistance, while the open design allows for effective heat dissipation and custom lubrication regimes.
- Standard Internal Clearance: The CN clearance is the standard group, providing a versatile fit for a wide range of operating conditions and ensuring optimal performance.
61860 MA Bearing Typical Application Areas
The 61860 MA deep groove ball bearing is engineered for use in a variety of heavy industrial machinery and precision equipment, including:
- Industrial Gearboxes and Transmissions
- Large Electric Motors and Generators
- Material Handling Conveyor Systems
- Pulp and Paper Processing Machinery
- Mining and Construction Equipment
- Large Pumps and Compressors
