NB042AR0
5/16" Constant Section Bearings
Image may differ from product. See technical specification for details.
Part No.
Part No.
NB042AR0
Basic Information
Bearing type
Ball
System of measurement
Inch
Thin section bearings type
Endura-kote Plated
Construction
Single Row
Weight
0.31 lbs
Tolerance class
ABEC-1
ISO radial rating
1967 lbf
Seal type
Open
For load direction
Angular Contact
Main Dimensions
Bore diameter
4.25"
Bore diameter tolerance
-0.0008"– 0"
Outside diameter
4.875"
Outside diameter tolerance
-0.0008"– 0"
Width
0.3125"
Width tolerance
+.000 –.005"
Contact angle
30 °
Inner Ring Dimensions
Shoulder diameter inner ring
4.481"
Outer Ring Dimensions
Outer ring large-side face inner diameter
4.71"
Outer ring small-side face inner diameter
4.643"
Performance
Temperature range
-30°C to 110 °C
Radial dynamic load rating
891 lbf
Radial static load rating
2150 lbf
Axial static load rating
2170 lbf
Static load moment
6200 lbf
Lubrication
Lubricated
Radial internal clearance
0.0000 – 0.0005"
Materials
Ring material
Chrome Steel
Ball material
Chrome Steel
Cage material
Brass
Coating
Chromium Plating
Environment & Compliance
ROHS
Compliant
Technical Drawings
No drawings available at the moment, will be launched soon
Price:
$ 134.15
/ each
In Stock
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
NB042AR0 Bearing Product Overview & Core Advantages
The NB042AR0 is a high-precision Angular Contact Ball Bearing engineered for demanding applications requiring superior performance under combined loads. Featuring a single row design with a 30° contact angle, it is optimized to handle significant axial loads in one direction alongside radial loads. Manufactured to ABEC-1 precision tolerances and finished with a durable Endura-kote Chromium Plating, this bearing offers excellent corrosion resistance and extended service life in harsh environments. Its compact cross-section and robust construction make it an ideal choice for high-rigidity, space-constrained assemblies.
NB042AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| NB | Manufacturer Prefix |
| 042 | Bore Size Code (4.25") |
| A | Angular Contact Design |
| R | Ring Material & Construction |
| 0 | Specific Internal Design / Series |
NB042AR0 Bearing Structural Features & Performance Benefits
- High Rigidity & Load Capacity: The single row angular contact design with a 30° contact angle provides exceptional rigidity, enabling the bearing to support high radial dynamic load ratings of 891 lbf and axial static load ratings of 2170 lbf simultaneously.
- Precision Performance: Manufactured to ABEC-1 tolerance standards with a tight radial internal clearance (0.0000 – 0.0005"), ensuring smooth operation, reduced vibration, and high running accuracy.
- Durability in Harsh Conditions: The Endura-kote Chromium Plating on the rings provides superior corrosion resistance, while the brass cage ensures dimensional stability and reliable performance across a wide temperature range (-30°C to 110°C).
- Optimized for Combined Loads: The specific geometry, including defined shoulder diameters, is engineered to manage complex combined loads and moments, with a static load moment rating of 6200 lbf.
NB042AR0 Bearing Typical Application Areas
This bearing is ideally suited for applications requiring high precision and reliability under combined loads, such as:
- Precision Machine Tool Spindles
- High-Performance Industrial Pumps and Compressors
- Aerospace Actuation Systems
- Robotic Arm Joints and Precision Gearing
- Medical and Laboratory Automation Equipment
