6205NRJ/EM
6200 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6205NRJ/EM Bearing Product Overview & Core Advantages
The 6205NRJ/EM is a single row deep groove ball bearing designed for robust performance in radial load applications. Its key distinguishing feature is the snap ring groove on the outer ring, which facilitates secure axial positioning and simplifies housing design by eliminating the need for complex end covers. Manufactured to ABEC 1 | ISO P0 tolerance standards, this bearing offers reliable precision and is constructed entirely from chrome steel for durability. Its open design allows for versatile re-lubrication strategies, making it a cost-effective and high-performance solution for a wide range of industrial machinery.
6205NRJ/EM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 6205 | Standard bearing series designation | Indicates the bearing dimensions: 25mm bore, 52mm OD, 15mm width. |
| NR | Snap Ring Groove | The outer ring has a groove for a snap ring, enabling simplified axial location. |
| J | Pressed Steel Cage | Indicates the use of a robust, lightweight pressed steel cage, suitable for high-speed operation. |
| /EM | Electric Motor Quality | Signifies optimized internal geometry and CN radial clearance for low noise and vibration, ideal for electric motors. |
6205NRJ/EM Bearing Structural Features & Performance Benefits
Simplified Assembly with Snap Ring: The integrated snap ring groove is a key structural feature that provides a positive axial location for the bearing within the housing. This eliminates the need for complex and costly housing shoulders or end caps, reducing overall assembly time and cost.
Optimized for Electric Motors: The /EM designation confirms this bearing is engineered for electric motor applications. It features optimized internal geometry and a standard CN radial internal clearance that ensures smooth, quiet running with minimal vibration, which is critical for the performance and longevity of electric motors.
High-Speed Capability: The lightweight and durable pressed steel cage (J) effectively guides the balls at high rotational speeds, contributing to a limiting speed of 13,000 rpm. The open design allows for efficient heat dissipation and various lubrication options to support sustained high-speed operation.
Robust Load Capacity: Manufactured from high-grade chrome steel, this bearing delivers a dynamic load rating of 3147 lbf and a static load rating of 1765 lbf, providing reliable performance under significant radial loads.
6205NRJ/EM Bearing Typical Application Areas
The 6205NRJ/EM is ideally suited for applications requiring secure mounting and quiet operation. Key industries and equipment include:
- Electric Motors and Generators (primary application due to /EM specification)
- Gearboxes and Power Transmission Systems
- Industrial Fans and Blowers
- Conveyor Systems
- Agricultural Machinery
- Any machinery where a snap ring is used for simplified bearing location in the housing.
