6304 NRJEM
6300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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6304 NRJEM Bearing Product Overview & Core Advantages
The 6304 NRJEM is a single row deep groove ball bearing engineered for reliable performance in radial load applications. Featuring a snap ring groove on its outer ring, this bearing offers simplified axial positioning and secure housing mounting. Manufactured to ABEC 1 | ISO P0 tolerance standards with standard CN clearance, it delivers consistent operation and is constructed entirely from durable chrome steel. Its open design allows for versatile lubrication options, making it a robust and cost-effective solution for a wide range of industrial machinery.
6304 NRJEM Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6304 | Basic bearing designation indicating a medium series, single row deep groove ball bearing with a 20mm bore. |
| NR | Specifies that the outer ring features a snap ring groove. This groove accommodates a snap ring for simplified axial location within the housing. |
| JEM | Indicates the use of a stamped steel cage, which is a lightweight and robust design suitable for high-speed operation. |
6304 NRJEM Bearing Structural Features & Performance Benefits
- Simplified Assembly and Positioning: The integrated snap ring groove on the outer ring eliminates the need for complex housing shoulders or end caps, reducing assembly time and cost while ensuring secure axial location.
- Robust Construction: Manufactured from high-grade chrome steel for both rings and balls, this bearing offers excellent wear resistance and a long operational lifespan under demanding conditions.
- High-Speed Capability: The lightweight and durable stamped steel cage (JEM) effectively guides the balls, minimizing friction and enabling stable performance at the specified limiting speed of 19,000 rpm.
- Radial Load Performance: The optimized deep groove raceway geometry is designed to efficiently handle significant radial dynamic loads (3777 lbf) and radial static loads (1754 lbf).
- Versatile Lubrication: The open seal type allows for the application of various greases or oils, providing flexibility to match specific application requirements for temperature and speed.
6304 NRJEM Bearing Typical Application Areas
The 6304 NRJEM is ideally suited for applications requiring secure mounting and reliable radial load support, including:
- Electric Motors and Gearboxes
- Industrial Pumps and Fans
- Material Handling Equipment (e.g., conveyor rollers)
- Agricultural Machinery
- Automotive Components (e.g., alternators, idler pulleys)
