NB070AR0
5/16" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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NB070AR0 Bearing Product Overview & Core Advantages
The NB070AR0 is a single row angular contact ball bearing engineered for high-precision applications requiring exceptional load handling capabilities. This inch-series bearing features a 30° contact angle design, optimized for simultaneously carrying combined radial and axial loads. With its Endura-kote chromium plating and ABEC-1 precision tolerance, it delivers superior corrosion resistance and reliable performance in demanding industrial environments. The open construction allows for custom lubrication solutions while maintaining high rigidity and dimensional stability.
NB070AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB070 | Bearing series designation for inch-size angular contact bearings |
| A | 30° contact angle for optimal axial load capacity |
| R0 | Standard radial internal clearance designation |
NB070AR0 Bearing Structural Features & Performance Benefits
Optimized Load Distribution: The 30° contact angle and single row construction provide excellent combined load capacity, with rated dynamic radial load of 1184 lbf and static axial load of 2980 lbf.
Precision Engineering: Manufactured to ABEC-1 tolerance standards with bore diameter tolerance of -0.0010" to 0" and radial internal clearance of 0.0000-0.0005" for consistent performance.
Enhanced Durability: Features chrome steel rings and balls with brass cage for superior strength and wear resistance. The Endura-kote chromium plating provides exceptional corrosion protection.
Thermal Performance: Operating temperature range of -30°C to 110°C ensures reliable performance across various environmental conditions.
NB070AR0 Bearing Typical Application Areas
- Precision machine tools and spindle assemblies
- Aerospace components and actuation systems
- Medical equipment requiring high precision and reliability
- Robotic joints and automation systems
- Optical positioning systems and precision instruments
- Industrial pumps and compressor systems
