Self Aligning Ball Bearings

**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
2322C3
110.000 mm
240.000 mm
80.000 mm
3.000 mm
2322K
110.000 mm
240.000 mm
80.000 mm
3.000 mm
16.849 kg
2322KC3
110.000 mm
240.000 mm
80.000 mm
3.000 mm
2317K
85.000 mm
180.000 mm
60.000 mm
3.000 mm
6.431 kg
2321K
105.000 mm
225.000 mm
77.000 mm
3.000 mm
13.900 kg
2317KC3
85.000 mm
180.000 mm
60.000 mm
3.000 mm
6.431 kg
2321KC3
105.000 mm
225.000 mm
77.000 mm
3.000 mm
2318
90.000 mm
190.000 mm
64.000 mm
3.000 mm
7.750 kg
2322
110.000 mm
240.000 mm
80.000 mm
3.000 mm
17.202 kg
2318C3
90.000 mm
190.000 mm
64.000 mm
3.000 mm
7.750 kg
2318K
90.000 mm
190.000 mm
64.000 mm
3.000 mm
7.567 kg
2318KC3
90.000 mm
190.000 mm
64.000 mm
3.000 mm
2319
95.000 mm
200.000 mm
67.000 mm
3.000 mm
9.010 kg
2319C3
95.000 mm
200.000 mm
67.000 mm
3.000 mm
2319K
95.000 mm
200.000 mm
67.000 mm
3.000 mm
8.807 kg
2319KC3
95.000 mm
200.000 mm
67.000 mm
3.000 mm
2320
100.000 mm
215.000 mm
73.000 mm
3.000 mm
2320C3
100.000 mm
215.000 mm
73.000 mm
3.000 mm
2320K
100.000 mm
215.000 mm
73.000 mm
3.000 mm
11.344 kg
2320KC3
100.000 mm
215.000 mm
73.000 mm
3.000 mm
11.344 kg