NB045AR0
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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NB045AR0 Bearing Product Overview & Core Advantages
The NB045AR0 is a single row angular contact ball bearing engineered for high-precision applications requiring superior performance under combined loads. Featuring inch dimensions and Endura-kote plating, this bearing delivers exceptional corrosion resistance and durability. Its optimized 30° contact angle provides excellent axial load capacity while maintaining robust radial load handling. Manufactured to ABEC-1 precision standards, it ensures reliable operation in demanding environments where accuracy and long service life are critical.
NB045AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB | Manufacturer series designation |
| 045 | Bore diameter: 4.5 inches |
| A | Angular contact design with 30° contact angle |
| R0 | Standard radial clearance and open construction |
NB045AR0 Bearing Structural Features & Performance Benefits
Premium Material Construction: Manufactured from chrome steel for both rings and balls, combined with a brass cage, this bearing delivers exceptional strength and wear resistance. The Endura-kote chromium plating provides superior corrosion protection, extending service life in harsh environments.
Optimized Load Capacity: The 30° contact angle design enables efficient handling of combined radial and axial loads, with a radial dynamic load rating of 917 lbf and axial static load capacity of 2240 lbf. The precise internal geometry ensures optimal stress distribution.
Precision Engineering: Built to ABEC-1 tolerance standards with tight dimensional control (bore and OD tolerance: -0.0008" to 0"), this bearing guarantees smooth operation and accurate positioning. The controlled radial internal clearance of 0.0000" – 0.0005" ensures consistent performance.
Versatile Operation: With a temperature range of -30°C to 110°C and factory lubrication, this bearing is ready for immediate installation and operation across diverse industrial applications.
NB045AR0 Bearing Typical Application Areas
- Aerospace components and flight control systems
- Precision medical equipment and surgical devices
- Robotic arm joints and automation systems
- Optical positioning systems and instrumentation
- Military and defense equipment requiring reliable performance
- Semiconductor manufacturing equipment
