NB065AR0
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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NB065AR0 Bearing Product Overview & Core Advantages
The NB065AR0 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, this bearing excels at handling combined loads—simultaneously supporting substantial radial forces and significant axial loads in one direction. Its 30° contact angle optimizes axial load capacity while maintaining excellent operational stability. The bearing features a durable Endura-kote chromium plating for enhanced corrosion resistance, making it ideal for harsh environments where standard bearings would fail.
NB065AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB | Manufacturer prefix indicating thin section bearing series |
| 065 | Bore diameter code (6.5 inches) |
| A | Angular contact design with 30° contact angle |
| R0 | Radial internal clearance designation (0.0000 – 0.0005") |
NB065AR0 Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: With a compact cross-section (0.3125" width) relative to its large bore diameter, this bearing enables space-saving designs while maintaining high load capacity. The brass cage ensures smooth operation at moderate speeds and excellent dimensional stability.
Superior Load Capacity: Engineered to handle combined radial and axial loads efficiently, featuring a radial dynamic load rating of 1132 lbf and axial static load rating of 2840 lbf. The 30° contact angle provides optimal force distribution for demanding applications.
Precision Engineering: Manufactured to ABEC-1 tolerance standards with tight dimensional controls (bore and OD tolerance: -0.0010"– 0"), ensuring consistent performance and easy installation in precision assemblies.
Enhanced Durability: The Endura-kote chromium plating provides superior corrosion resistance compared to standard chrome steel, extending service life in challenging environments. All components—rings, balls, and cage—are manufactured from premium materials for maximum reliability.
NB065AR0 Bearing Typical Application Areas
- Aerospace components and aircraft control systems
- Robotics and automation equipment requiring precise motion control
- Medical imaging devices and diagnostic equipment
- Semiconductor manufacturing equipment
- Precision instrumentation and optical positioning systems
- Military and defense systems requiring reliable performance in harsh conditions
