NB075AR0
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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NB075AR0 Bearing Product Overview & Core Advantages
The NB075AR0 is a single row angular contact ball bearing designed for high-performance applications requiring precision and reliability. Featuring inch dimensions with a substantial 7.5" bore, this bearing is engineered to accommodate combined radial and axial loads simultaneously, making it ideal for complex load scenarios. Its Endura-kote chromium plating provides superior corrosion resistance and extended service life. Manufactured to ABEC-1 precision standards, it offers excellent running accuracy and is pre-lubricated for immediate use, ensuring optimal performance in demanding industrial environments.
NB075AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB075 | Bearing series designation with 7.5" bore diameter |
| A | Angular contact design with 30° contact angle |
| R0 | Open (unsealed) construction with standard radial internal clearance |
NB075AR0 Bearing Structural Features & Performance Benefits
This bearing's optimized design delivers exceptional performance through several key features:
- High Load Capacity: The single row angular contact configuration with 30° contact angle efficiently handles combined loads, achieving radial dynamic load rating of 1235 lbf and axial static load capacity of 3120 lbf.
- Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional control (bore tolerance: -0.0012" to 0"), ensuring smooth operation and minimal vibration.
- Enhanced Durability: Constructed from chrome steel rings and balls with brass cage for optimal strength and wear resistance. The Endura-kote chromium plating provides superior corrosion protection.
- Optimized Internal Clearance: Controlled radial internal clearance (0.0000" - 0.0005") ensures proper preload conditions and thermal stability during operation.
- Wide Temperature Range: Suitable for operation from -30°C to 110°C, accommodating various industrial environments.
NB075AR0 Bearing Typical Application Areas
The NB075AR0 angular contact ball bearing is ideally suited for:
- Industrial Machinery: Precision spindles, machine tool applications, and rotary tables
- Motion Control Systems: Robotics, automation equipment, and precision positioning systems
- Aerospace Components: Actuators, control mechanisms, and instrumentation systems
- Specialized Equipment: Medical devices, testing apparatus, and high-precision rotating assemblies
- Heavy-duty Applications: Where combined radial and axial loading with precise motion control is required
