NB090AR0
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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NB090AR0 Bearing Product Overview & Core Advantages
The NB090AR0 is a high-performance Angular Contact Ball Bearing engineered for precision applications requiring superior load handling. This single row bearing features a 30° contact angle, optimized to support significant combined radial and axial loads simultaneously. Manufactured with Endura-kote chromium plating, it offers enhanced corrosion resistance and durability. Its inch-series dimensions (9" bore) and ABEC-1 precision make it ideal for applications demanding high rigidity and reliable performance in challenging environments.
NB090AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB | Manufacturer Series Identifier |
| 090 | Bore Diameter: 9 inches |
| A | Angular Contact Design (30° contact angle) |
| R | Single Row Construction |
| 0 | Open Seal Type (No shield/seal) |
NB090AR0 Bearing Structural Features & Performance Benefits
Optimized Contact Design: The 30° contact angle provides superior axial load capacity while maintaining excellent radial load performance, making it suitable for combined loading applications.
Premium Material Construction: Chrome steel rings and balls with brass cage ensure high strength, dimensional stability, and smooth operation under demanding conditions.
Precision Engineering: ABEC-1 tolerance class with tight dimensional controls (-0.0012" to 0" bore tolerance) guarantees consistent performance and easy installation.
Enhanced Surface Protection: Endura-kote chromium plating provides superior corrosion resistance, extending service life in harsh environments while maintaining bearing dimensions integrity.
High Load Capacity: With radial dynamic load rating of 1370 lbf and axial static load rating of 3510 lbf, this bearing delivers reliable performance in high-stress applications.
NB090AR0 Bearing Typical Application Areas
- Precision Machine Tools: Spindles and rotary tables requiring high accuracy and rigidity
- Aerospace Systems: Actuators, control mechanisms, and rotor assemblies
- Industrial Machinery: Pumps, compressors, and gearboxes operating under combined loads
- Medical Equipment: High-precision imaging devices and surgical instruments
- Robotics and Automation: Joint mechanisms and precision positioning systems
- Military and Defense: Guidance systems and weapon platforms requiring reliable performance
