312-ZNRJ
300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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312-ZNRJ Bearing Product Overview & Core Advantages
The 312-ZNRJ is a single row deep groove ball bearing engineered for high-performance industrial applications requiring reliable radial load capacity and precise operation. Featuring shielded construction and an integrated snap ring on the outer ring, this bearing offers simplified mounting, contamination protection, and excellent operational stability. Manufactured to ABEC 1 | ISO P0 tolerance standards with CN radial internal clearance, it delivers consistent performance in demanding environments.
Model Code Detailed Explanation
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| Z | Shielded on one side | Protects against contamination while maintaining low friction |
| NR | Snap ring groove on outer ring | Simplifies axial location and mounting in housings |
| J | Snap ring included | Provides complete mounting solution and cost efficiency |
312-ZNRJ Bearing Structural Features & Performance Benefits
Optimized Load Capacity: The single row deep groove design enables efficient handling of radial loads up to 20,525 lbf dynamic and 17,535 lbf static, while accommodating moderate axial loads in both directions.
Precision Engineering: Manufactured from chrome steel for rings, balls, and cage, ensuring dimensional stability and extended service life. The ABEC 1 precision class guarantees consistent running accuracy.
Enhanced Mounting Solution: The integrated snap ring feature eliminates the need for complex housing designs, reducing assembly time and improving axial positioning accuracy.
Contamination Protection: The shielded design provides effective protection against particulate contamination while maintaining high-speed capability up to 6,000 rpm.
312-ZNRJ Bearing Typical Application Areas
- Electric Motors and industrial gearboxes
- Material Handling Equipment including conveyors and pulleys
- Agricultural Machinery and implements
- Automotive Components such as alternators and pumps
- Industrial Fans and blowers
- General Machinery requiring reliable radial bearing support
