NB180AR0
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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NB180AR0 Bearing Product Overview & Core Advantages
The NB180AR0 is a single row angular contact ball bearing engineered for high-performance applications requiring exceptional precision and reliability. Manufactured to ABEC-1 precision standards, this bearing is specifically designed to accommodate combined loads, efficiently handling both radial loads and substantial thrust loads in one direction due to its 30° contact angle. Its Endura-kote chromium plating provides superior corrosion resistance, making it suitable for demanding environments. With a compact cross-section and robust construction, it delivers high rigidity and dependable operation.
NB180AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB | Manufacturer Prefix / Bearing Series |
| 180 | Bore Diameter in inches (18.0") |
| A | Angular Contact design |
| R | Filling Slot designation (if applicable) |
| 0 | Variant or internal code |
Note: The "Open" seal type and "Lubricated" status are inherent features not explicitly coded in the base model number.
NB180AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row angular contact design, combined with a 30° contact angle and a brass cage, provides excellent stability and enables the bearing to support significant combined radial and axial loads (Radial Dynamic: 2038 lbf, Axial Static: 5510 lbf).
- Precision Performance: Manufactured as an ABEC-1 precision bearing with tight dimensional tolerances on the bore diameter and outside diameter, ensuring smooth, precise operation and minimal runout.
- Durability & Corrosion Resistance: The Endura-kote chromium plating on all chrome steel components significantly enhances surface hardness and provides excellent protection against corrosion, extending service life in harsh conditions.
- Optimized Internal Geometry: The specified radial internal clearance and precision-ground raceways contribute to low noise, low vibration, and consistent performance under load.
NB180AR0 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring large bore diameters, high precision, and robust load capacity. Typical industries and machinery include:
- Aerospace Actuation Systems and control surfaces
- Large Industrial Robotics and automation equipment
- Precision Machine Tool spindles and rotary tables
- Medical Imaging Equipment (e.g., CT scanners)
- Semiconductor Manufacturing apparatus
- Radar and Satellite Communication positioning systems
