NA042XP0
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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NA042XP0 Bearing Product Overview & Core Advantages
The NA042XP0 is a thin-section four-point contact ball bearing engineered for applications requiring high precision and compact design. Featuring Endura-Kote chromium plating for enhanced corrosion resistance, this bearing delivers exceptional performance in combined radial and axial load scenarios. Its single-row design with optimized bearing dimensions (4.25" bore × 4.75" OD × 0.25" width) provides maximum load capacity in minimal space, making it ideal for precision machinery and aerospace applications where weight and space constraints are critical.
NA042XP0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| NA | Thin Section Bearing Series | Compact cross-section for space-constrained applications |
| 042 | Bore Diameter 4.25 inches | Standard inch sizing for compatibility |
| XP | Four Point Contact Design | Simultaneous radial and axial load capacity |
| 0 | Open Seal Type | Maximum speed capability and accessibility |
NA042XP0 Bearing Structural Features & Performance Benefits
Four-Point Contact Design: The optimized raceway geometry enables the bearing to handle combined radial and axial loads simultaneously, with exceptional axial static load capacity of 3410 lbf and radial static load capacity of 1370 lbf.
Thin-Section Construction: With a minimal cross-section of only 0.25" width, this bearing provides maximum load capacity in compact spaces while maintaining high rigidity and precision.
Premium Material Selection: Chrome steel rings and balls combined with brass cage material ensure dimensional stability and smooth operation under varying temperature conditions (-30°C to 110°C).
Enhanced Surface Treatment: The Endura-Kote chromium plating provides superior corrosion resistance and extended service life in challenging environments.
Precision Manufacturing: Manufactured to ABEC-1 tolerance class with tight radial internal clearance (0.0000 – 0.0005"), ensuring consistent performance and minimal vibration.
NA042XP0 Bearing Typical Application Areas
- Aerospace Systems: Actuators, control mechanisms, and guidance systems
- Robotics & Automation: Robotic arms, precision positioning systems, and rotary tables
- Medical Equipment: Imaging systems, surgical robots, and diagnostic instruments
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Optical Instruments: Telescope mounts, precision scanning systems, and measurement devices
- Defense Systems: Radar antennas, targeting systems, and military hardware
