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
2309L1C3
45.000 mm
100.000 mm
36.000 mm
1.500 mm
1.329 kg
2310
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.627 kg
2310C3
50.000 mm
110.000 mm
40.000 mm
2.000 mm
2310EEG15
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.820 kg
2310K
50.000 mm
110.000 mm
40.000 mm
2.000 mm
1.589 kg
2310KC3
50.000 mm
110.000 mm
40.000 mm
2.000 mm
2310KG15C3
50.000 mm
110.000 mm
40.000 mm
2.000 mm
2311
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.087 kg
2311C3
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.087 kg
2311K
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.101 kg
2311KC3
55.000 mm
120.000 mm
43.000 mm
2.000 mm
2.101 kg
2312
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2.589 kg
2312C3
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2312K
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2.531 kg
2312KC3
60.000 mm
130.000 mm
46.000 mm
2.100 mm
2305KG15
25.000 mm
62.000 mm
24.000 mm
1.100 mm
2306
30.000 mm
72.000 mm
27.000 mm
1.100 mm
0.494 kg
2306C3
30.000 mm
72.000 mm
27.000 mm
1.100 mm
0.494 kg
2306EEG15
30.000 mm
72.000 mm
27.000 mm
1.100 mm
0.554 kg
2306K
30.000 mm
72.000 mm
27.000 mm
1.100 mm
0.484 kg
2306KC3
30.000 mm
72.000 mm
27.000 mm
1.100 mm
0.484 kg
2307
35.000 mm
80.000 mm
31.000 mm
1.500 mm
0.668 kg
2307C3
35.000 mm
80.000 mm
31.000 mm
1.500 mm
0.668 kg
2307EEG15
35.000 mm
80.000 mm
31.000 mm
1.500 mm
0.744 kg