NA040AR0
1/4" 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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NA040AR0 Bearing Product Overview & Core Advantages
The NA040AR0 is a single row angular contact ball bearing engineered for precision applications requiring high load capacity in a compact design. Featuring Endura-kote chromium plating for enhanced corrosion resistance, this inch-series bearing delivers exceptional performance in angular contact configurations. Its optimized 30° contact angle enables superior handling of combined radial and axial loads, while the ABEC-1 precision class ensures reliable operation in demanding industrial environments.
NA040AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NA040 | Bearing series designation with 4" bore diameter |
| A | Angular contact design with 30° contact angle |
| R0 | Standard radial internal clearance designation |
NA040AR0 Bearing Structural Features & Performance Benefits
Premium Material Construction: Manufactured from chrome steel rings and chrome steel balls with brass cage, providing excellent durability and wear resistance in high-speed applications.
Enhanced Surface Protection: The Endura-kote chromium plating offers superior corrosion resistance, extending bearing service life in challenging environments while maintaining dimensional stability.
Optimized Load Capacity: The 30° contact angle design enables efficient handling of combined radial and axial loads, with a radial dynamic load rating of 595 lbf and axial static load rating of 1470 lbf.
Precision Engineering: Built to ABEC-1 tolerance standards with tight dimensional controls, including bore diameter tolerance of -0.0008" to 0" and radial internal clearance of 0.0000" to 0.0005".
NA040AR0 Bearing Typical Application Areas
- Aerospace components and flight control systems
- Precision medical equipment and surgical devices
- Robotic arm joints and automation systems
- Optical positioning systems and instrumentation
- Military and defense equipment requiring reliable performance
- Food processing machinery benefiting from corrosion-resistant plating
