NA120XP0
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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NA120XP0 Bearing Product Overview & Core Advantages
The NA120XP0 is a Four Point Contact Ball Bearing engineered for applications requiring exceptional moment load capacity within a compact cross-section. This thin section bearing features a single row design and is distinguished by its Endura-Kote plating (Chromium Plating), which enhances corrosion resistance. Its primary advantage lies in its ability to simultaneously support high radial loads, axial loads from both directions, and significant moment loads, making it an ideal solution for precision rotary systems where space and weight are critical constraints.
NA120XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NA120 | Bearing series and size designation (12" bore, 12.5" OD) |
| XP0 | Indicates the bearing is lubricated and features an open (non-sealed) construction. |
Key Feature Highlights: The open seal type allows for custom re-lubrication strategies, while the standard lubrication ensures immediate operational readiness. The model designation confirms its inch dimensions and specialized thin section profile.
NA120XP0 Bearing Structural Features & Performance Benefits
- Four Point Contact Design: A single bearing row with a specially designed raceway that creates four points of contact between the balls and raceways. This unique construction allows the NA120XP0 to handle combined loads (radial, axial, and moment) efficiently, often replacing more complex bearing arrangements.
- High Moment Load Capacity: Engineered to withstand substantial dynamic load moments (6587 lbf) and static load moments (22770 lbf), providing stable and rigid support against tilting forces.
- Thin Section & Lightweight: With a cross-section of only 0.25", this bearing minimizes space and weight (0.56 lbs) without compromising on load ratings, crucial for aerospace and robotics applications.
- Corrosion-Resistant Plating: The Endura-Kote (Chromium Plating) surface treatment significantly improves durability and service life in challenging environments.
- Precision Construction: Manufactured to ABEC-1 tolerance class with components made from Chrome Steel (rings and balls) and a Brass cage for reliable high-speed operation and smooth performance.
NA120XP0 Bearing Typical Application Areas
The NA120XP0 is ideally suited for high-performance applications requiring compact, lightweight solutions with high moment stiffness:
- Aerospace Actuators and Control Systems
- Robotic Joints and Rotary Actuators
- Precision Rotary Tables and Indexing Heads
- Radar and Satellite Communication Antennas
- Medical Imaging and Scanning Equipment
- Semiconductor Manufacturing Equipment
