NB045XP0
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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NB045XP0 Bearing Product Overview & Core Advantages
The NB045XP0 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 moment and axial load scenarios. Its single-row design with optimized bearing dimensions (4.5" bore × 5.125" OD) provides maximum load capacity in minimal cross-sections, making it ideal for space-constrained precision equipment.
Model Code Technical Breakdown
| Code Segment | Technical Meaning | Performance Implication |
|---|---|---|
| NB | Thin Section Bearing Series | Compact cross-section design |
| 045 | 4.5" Bore Diameter | Standard inch sizing |
| XP | Extra Precision | ABEC-1 tolerance class |
| 0 | Open Construction | No seals for maximum speed capability |
NB045XP0 Bearing Structural Features & Performance Benefits
Four-Point Contact Design: Enables the bearing to simultaneously handle combined moment loads (2103 lbf dynamic, 4690 lbf static) and substantial axial loads (1850 lbf dynamic, 4880 lbf static) in both directions, eliminating the need for multiple bearing arrangements.
Thin-Section Construction: With only 0.3125" width and optimized cross-section, this precision bearing delivers maximum performance in minimal space while maintaining high rigidity and dimensional stability.
Premium Material Selection: Chrome steel rings and balls with brass cage construction provide excellent durability and smooth operation under high-speed applications, while the chromium plating enhances corrosion resistance in demanding environments.
Precision Engineering: Manufactured to ABEC-1 standards with tight radial internal clearance (0.0000" – 0.0005") and precise dimensional tolerances, ensuring consistent performance in precision motion systems.
NB045XP0 Bearing Typical Application Areas
- Robotics and Automation: Rotary joints, robotic arms, and precision positioning systems
- Aerospace Equipment: Actuators, control mechanisms, and satellite positioning systems
- Medical Devices: CT scanners, MRI equipment, and surgical robotics
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Industrial Machinery: Rotary tables, indexing heads, and precision gearboxes
