NA120AR0
1/4" Constant Section Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
NA120AR0 Bearing Product Overview & Core Advantages
The NA120AR0 is a high-precision single row angular contact ball bearing designed for demanding applications requiring superior performance. Engineered with an inch system of measurement, this bearing excels in handling combined loads, effectively supporting both radial and significant axial loads in one direction due to its specific 30° contact angle. Its Endura-kote chromium plating provides enhanced corrosion resistance and durability. With a compact cross-section (0.25" width) relative to its large 12" bore, it offers a space-saving solution without compromising on high rigidity and load capacity, making it ideal for high-reliability and precision machinery.
NA120AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NA | Designates a specific series of angular contact ball bearings. |
| 120 | Indicates the bore diameter in millimeters (approximate conversion from 12"). |
| A | Specifies a 30° contact angle, optimized for high axial load capacity. |
| R0 | Denotes a specific internal design and radial internal clearance group. |
NA120AR0 Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single row design with a brass cage ensures stable operation and high rotational accuracy, supported by ABEC-1 precision tolerance.
- Superior Load Capacity: Engineered to handle significant combined loads, with a radial dynamic load rating of 1128 lbf and an axial static load rating of 2970 lbf.
- Durability and Corrosion Resistance: The Endura-kote chromium plating on rings and balls significantly enhances wear and corrosion resistance, extending service life in harsh environments.
- Optimized for Pre-Lubrication: Comes pre-lubricated for immediate use, reducing initial setup time and ensuring smooth operation from the start within a temperature range of -30°C to 110°C.
NA120AR0 Bearing Typical Application Areas
This bearing is suited for applications requiring large bore diameters and high precision, including:
- Aerospace control mechanisms and actuators
- Precision rotary tables and indexing heads
- Medical imaging and diagnostic equipment
- Robotic arms and precision automation systems
- High-performance industrial machinery spindles
