NB040XP0
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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NB040XP0 Bearing Product Overview & Core Advantages
The NB040XP0 is a Four Point Contact thin-section ball bearing engineered for applications requiring high precision and compact design. Featuring Endura-kote Plated chromium coating for enhanced corrosion resistance, this single-row bearing excels in handling combined radial and axial loads simultaneously. Its inch-dimension design (4" bore) and ABEC-1 precision make it ideal for high-rigidity support in space-constrained assemblies, while the brass cage ensures stable performance across a temperature range of -30°C to 110°C.
NB040XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| NB040XP0 | Basic model designation for 4" bore diameter | Standard inch-series identification |
| Endura-kote | Chromium plating coating | Enhanced corrosion resistance and durability |
| Open | No seal/closure | Suitable for controlled environments with external lubrication |
| Four Point Contact | Ball-raceway contact geometry | Simultaneous radial and axial load capacity |
NB040XP0 Bearing Structural Features & Performance Benefits
Four Point Contact Design: Enables the bearing to support combined loads efficiently with a single bearing row, providing axial load capacity of 4370 lbf static and 1720 lbf dynamic while maintaining compact dimensions.
Thin Section Construction: With 0.3125" width and 4.625" outside diameter, this bearing offers space-saving advantages without compromising load capacity, making it ideal for lightweight applications.
Precision Engineering: Manufactured to ABEC-1 tolerance class with radial internal clearance of 0.0000-0.0005", ensuring high precision operation and consistent performance.
Material Excellence: Chrome steel rings and balls combined with brass cage provide excellent wear resistance and high-speed capability, while the chromium plating enhances corrosion protection.
NB040XP0 Bearing Typical Application Areas
- Robotics and Automation: Rotary joints, articulated arms, and precision positioning systems
- Aerospace Equipment: Guidance systems, actuator mechanisms, and satellite components
- Medical Devices: Imaging equipment, surgical robots, and diagnostic instruments
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Optical Systems: Precision turntables, mirror mounts, and positioning devices
