NB020AR0
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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NB020AR0 Bearing Product Overview & Core Advantages
The NB020AR0 is a high-precision single row angular contact ball bearing designed for demanding applications requiring exceptional accuracy and reliability. Manufactured to ABEC-1 tolerance standards with a 30° contact angle, this bearing excels at handling combined radial and axial loads simultaneously. Its Endura-kote chromium plating provides superior corrosion resistance, while the brass cage ensures stable operation. With a compact 0.3125" width and optimized internal geometry, it delivers outstanding performance in space-constrained, high-rigidity applications.
NB020AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB | Manufacturer series designation for precision bearings |
| 020 | Bore diameter code (2 inches) |
| A | Angular contact design with 30° contact angle |
| R | Brass cage construction for enhanced stability |
| 0 | Open seal type for maximum speed capability |
NB020AR0 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to ABEC-1 standards with tight dimensional tolerances (bore: -0.0006"–0", OD: -0.0005"–0") ensuring consistent performance in precision applications.
Superior Load Capacity: The 30° contact angle design enables handling of significant combined loads, with radial dynamic rating of 601 lbf and axial static rating of 1380 lbf.
Enhanced Material Properties: Chrome steel rings and balls combined with brass cage provide excellent durability and high-speed capability, while the chromium plating offers superior corrosion resistance.
Optimized Internal Geometry: Precision-ground raceways and optimized shoulder diameters (inner: 2.231", outer small-side: 2.393") ensure smooth operation and extended service life.
NB020AR0 Bearing Typical Application Areas
The NB020AR0 precision angular contact bearing is ideally suited for:
- Machine tool spindles and precision rotating equipment
- Medical equipment and laboratory instruments requiring high accuracy
- Aerospace components and navigation systems
- Robotics and automation systems with space constraints
- Optical positioning systems and measuring instruments
- High-performance pumps and compressors requiring combined load capacity
