**Introduction to NSK’s Extra Small and Miniature Ball Bearings – Metric Series with Flange**

NSK’s precision-engineered **Extra Small Ball Bearings and Miniature Ball Bearings (Metric Series with Flange)** represent the pinnacle of compact, high-performance bearing technology. Designed for applications where space constraints, precision, and reliability are critical, these deep groove ball bearings deliver exceptional rotational accuracy, durability, and load capacity in demanding environments. With advanced materials, optimized geometries, and NSK’s proprietary manufacturing expertise, these bearings are ideal for industrial machinery, automotive systems, medical devices, and precision instrumentation.

### **Technical Features & Design Advantages**
NSK’s **flanged metric-series miniature bearings** incorporate several key innovations to enhance performance in compact applications:

– **High-Precision Engineering**: Manufactured to ultra-tight tolerances (ABEC-1 to ABEC-7/P0 to P4), these bearings ensure smooth, low-vibration operation, critical for sensitive equipment like optical encoders or robotic actuators.
– **Flange Design**: The integrated flange provides secure axial positioning, simplifying installation and preventing misalignment—especially valuable in high-speed or miniaturized assemblies.
– **Advanced Materials**: Options include high-grade chrome steel (SUJ2) for general applications or corrosion-resistant stainless steel (AISI 440C) for harsh environments.
– **Optimized Lubrication**: Pre-lubricated with low-torque grease or oil, reducing friction and wear while extending service life in high-speed applications (up to 50,000 rpm or more, depending on size).
– **Sealed/Shielded Variants**: Available with rubber seals (2RS) or metal shields (ZZ) to protect against contaminants like dust or moisture, enhancing reliability in industrial or automotive settings.

### **Performance Benefits**
– **Space-Saving Design**: With bore diameters as small as 1 mm and compact outer dimensions, these bearings fit into tightly constrained mechanisms without sacrificing load capacity.
– **Reduced Maintenance**: NSK’s precision grinding and surface finishing minimize wear, while optimized heat treatment (such as NSK’s proprietary “Super-TF” treatment) boosts fatigue resistance.
– **High-Speed Capability**: Low-noise, low-torque operation makes them ideal for small motors, drones, or dental handpieces where efficiency is paramount.

### **Typical Applications**
– **Industrial Automation**: Used in miniature servo motors, linear guides, and CNC tooling for precise motion control.
– **Automotive Systems**: Found in throttle valves, sensors, and electric fuel pumps where reliability under thermal cycling is critical.
– **Medical & Dental Equipment**: Essential for high-speed handpieces, imaging devices, and robotic surgical tools requiring sterility and precision.
– **Consumer Electronics**: Deployed in drones, cameras, and small gearboxes for smooth, quiet operation.

NSK’s **Miniature and Extra Small Ball Bearings with Flange** combine cutting-edge engineering with rigorous quality control, ensuring unmatched performance in the most demanding micro-motion applications. Whether for OEMs or maintenance replacements, these bearings deliver longevity, efficiency, and precision—key to advancing modern technology.

*For further details on specifications, load ratings, or customization options, consult NSK’s technical documentation or contact their engineering support team.*