61844 MA/W64
618 & 619 Series Thin Section Bearings
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61844 MA/W64 Bearing Product Overview & Core Advantages
The 61844 MA/W64 is a single row deep groove ball bearing designed for exceptional performance in demanding industrial applications. This metric bearing features a solid chrome steel construction and is pre-lubricated with Soild Oil for long-term, maintenance-free operation. Its key advantages include a high radial dynamic load rating of 17,535 lbf, reliable operation at limiting speeds up to 2,800 rpm, and compliance with ABEC 1 | ISO P0 precision standards, making it a robust and cost-effective solution for applications requiring consistent radial load support.
61844 MA/W64 Bearing Model Code Explained, Specifications & Naming Convention
| Model Segment | Technical Meaning |
|---|---|
| 61844 | Basic bearing designation indicating a single row deep groove ball bearing with a 220 mm bore and 270 mm outside diameter. |
| MA | Indicates a machined brass cage, providing high strength and excellent guidance for high-speed applications. |
| W64 | Signifies that the bearing is pre-lubricated with Soild Oil, a polymer-based lubricant that is permanently sealed, offering superior protection against lubricant washout and enabling maintenance-free operation. |
61844 MA/W64 Bearing Structural Features & Performance Benefits
- Robust Construction for High Load Capacity: Manufactured from high-grade chrome steel for both rings and balls, this bearing is engineered to withstand high radial dynamic loads and provides a long service life under continuous operation.
- High-Speed Capability: The inclusion of a machined brass cage (MA) ensures exceptional stability and low friction at the limiting speed of 2,800 rpm, making it suitable for applications requiring rapid rotation.
- Maintenance-Free & Contamination Resistant: The Soild Oil (W64) lubrication system is permanently sealed within the bearing, eliminating the need for re-lubrication. This solid lubricant is highly resistant to water, chemicals, and dust, ensuring reliable performance across a wide temperature range from -30°C to 120°C.
- Standard Precision & Clearance: Conforms to ABEC 1 | ISO P0 tolerance class with a standard CN radial internal clearance, providing consistent and predictable performance for a wide range of general industrial applications.
61844 MA/W64 Bearing Typical Application Areas
The 61844 MA/W64 is ideally suited for a variety of industrial machinery and equipment where reliability and maintenance-free operation are critical. Common applications include:
- Electric Motors and Generators
- Industrial Gearboxes
- Material Handling Conveyors
- Agricultural Machinery
- Pumps and Fans
- Construction Equipment
