Self Aligning Ball Bearing

**NTN Self-Aligning Ball Bearings: Precision, Durability, and Versatility for Demanding Applications**

NTN is a globally recognized leader in the design and manufacture of high-performance rolling bearings, with its **Self-Aligning Ball Bearings** standing out as a critical solution for applications requiring exceptional misalignment compensation, reduced friction, and long service life. These bearings are engineered to accommodate shaft misalignment and mounting errors while maintaining smooth operation—making them indispensable in industrial machinery, automotive systems, and precision equipment where reliability under dynamic conditions is paramount.

### **Technical Features & Design Advantages**
NTN’s **Self-Aligning Ball Bearings** feature a unique double-row ball and spherical raceway design in the outer ring, allowing the inner ring and balls to pivot freely. This self-aligning capability compensates for **angular misalignment up to 3 degrees**, reducing stress on adjacent components and preventing premature wear. Key technical highlights include:

– **Robust Construction:** Manufactured from high-grade chrome steel or specialty materials (e.g., stainless steel for corrosive environments), these bearings deliver high load capacity and resistance to fatigue.
– **Low-Friction Performance:** Precision-ground raceways and optimized ball-to-groove contact minimize friction, enhancing efficiency and reducing heat generation.
– **Sealing & Lubrication Options:** NTN offers variants with **contact (LLU) or non-contact (LLB) seals**, as well as shields, to protect against contaminants. Pre-lubricated with high-performance grease for extended maintenance intervals.
– **High-Speed Capability:** Advanced cage designs (stamped steel, machined brass, or polymer) ensure stability at elevated speeds, critical for automotive and industrial applications.

### **Performance Benefits**
NTN’s Self-Aligning Ball Bearings excel in **harsh or misaligned operating conditions**, providing:
– **Extended Service Life:** Reduced wear from misalignment lowers downtime and replacement costs.
– **Vibration & Noise Dampening:** Smoother rotation improves performance in precision equipment like pumps and fans.
– **Versatility:** Suitable for radial and moderate axial loads, with options for heavy-duty industrial or high-speed automotive use.

### **Typical Applications**
These bearings are widely used across industries, including:
– **Industrial Machinery:** Conveyors, gearboxes, textile spindles, and agricultural equipment where shaft deflection occurs.
– **Automotive Systems:** Auxiliary units (alternators, tensioners), electric motors, and drivetrain components requiring misalignment tolerance.
– **Precision Equipment:** Medical devices, robotics, and HVAC systems where smooth, low-maintenance operation is critical.

NTN’s commitment to **innovation and quality control** ensures that its Self-Aligning Ball Bearings meet stringent ISO and ABMA standards, providing engineers with a reliable solution for challenging mechanical systems. Whether in high-load industrial environments or high-speed automotive applications, NTN’s bearings deliver **durability, efficiency, and performance under misaligned conditions.**

For applications demanding **resilience and precision**, NTN’s Self-Aligning Ball Bearings offer a proven, high-performance solution.

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Part Number d D B r Mass
2208C3
40.000 mm
80.000 mm
23.000 mm
1.100 mm
0.493 kg
2208EEG15
40.000 mm
80.000 mm
23.000 mm
1.100 mm
0.528 kg
2208K
40.000 mm
80.000 mm
23.000 mm
1.100 mm
0.484 kg
2208KC3
40.000 mm
80.000 mm
23.000 mm
1.100 mm
0.484 kg
2209
45.000 mm
85.000 mm
23.000 mm
1.100 mm
0.541 kg
2209C3
45.000 mm
85.000 mm
23.000 mm
1.100 mm
0.541 kg
2209EEG15
45.000 mm
85.000 mm
23.000 mm
1.100 mm
0.548 kg
2209K
45.000 mm
85.000 mm
23.000 mm
1.100 mm
0.530 kg
2209KC3
45.000 mm
85.000 mm
23.000 mm
1.100 mm
0.530 kg
2209KEEG15
45.000 mm
85.000 mm
23.000 mm
1.100 mm
0.535 kg
2210
50.000 mm
90.000 mm
23.000 mm
1.100 mm
0.581 kg
2210C3
50.000 mm
90.000 mm
23.000 mm
1.100 mm
0.581 kg
2210EEG15
50.000 mm
90.000 mm
23.000 mm
1.100 mm
0.606 kg
2210K
50.000 mm
90.000 mm
23.000 mm
1.100 mm
0.572 kg
2210KC3
50.000 mm
90.000 mm
23.000 mm
1.100 mm
0.572 kg
2204
20.000 mm
47.000 mm
18.000 mm
1.000 mm
0.140 kg
2204C3
20.000 mm
47.000 mm
18.000 mm
1.000 mm
0.140 kg
2204EEG15
20.000 mm
47.000 mm
18.000 mm
1.000 mm
0.148 kg
2204G15
20.000 mm
47.000 mm
18.000 mm
1.000 mm
2204K
20.000 mm
47.000 mm
18.000 mm
1.000 mm
0.136 kg
2204KC3
20.000 mm
47.000 mm
18.000 mm
1.000 mm
2205
25.000 mm
52.000 mm
18.000 mm
1.000 mm
0.156 kg
2205C3
25.000 mm
52.000 mm
18.000 mm
1.000 mm
0.156 kg
2205EEG15
25.000 mm
52.000 mm
18.000 mm
1.000 mm
0.162 kg