312-2ZNR
300 Series Snap Ring Bearings
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Basic Information
Main Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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312-2ZNR Bearing Product Overview & Core Advantages
The 312-2ZNR is a single row deep groove ball bearing designed for exceptional radial load capacity and reliable operation. Featuring integrated shields (2Z) and a snap ring groove on its outer ring, this bearing offers robust contamination protection and simplified axial location in housings. Manufactured to P0 tolerance class with standard CN radial internal clearance, it delivers consistent performance for general industrial applications requiring high reliability and maintenance-free operation.
Model Code Breakdown
| Suffix | Technical Meaning |
|---|---|
| 2Z | Non-contact steel shields on both sides for effective contamination protection while maintaining low friction |
| NR | Snap ring groove on the outer ring for axial location and simplified housing design |
312-2ZNR Bearing Structural Features & Performance Benefits
Robust Construction: The single row deep groove design with chrome steel rings and balls provides excellent radial load capacity (20,525 lbf dynamic / 17,535 lbf static). The stainless steel cage ensures reliable guidance under high-speed conditions.
Simplified Installation: The snap ring groove eliminates the need for complex housing shoulders, reducing assembly time and cost while providing secure axial location.
Maintenance-Free Operation: Factory-filled grease lubrication combined with double shields creates a sealed environment that prevents lubricant leakage and contaminant ingress, extending service life.
Wide Temperature Range: Suitable for operation from -30°C to 120°C, making it versatile for various industrial environments.
312-2ZNR Bearing Typical Application Areas
- Electric Motors and Industrial Gearboxes
- Material Handling Equipment and Conveyor Systems
- Agricultural Machinery and Implements
- Pump Systems and Blower Units
- General Industrial Machinery requiring reliable radial bearing solutions
