Tapered Roller Set – Metric Series

**NTN Tapered Roller Bearings – Metric ISO Series: Precision, Durability, and High-Performance Load Handling**

NTN’s **Metric ISO Series Tapered Roller Bearings** and **Tapered Roller Sets** represent a pinnacle of engineering excellence, designed to deliver unmatched reliability in demanding industrial and automotive applications. These bearings are meticulously crafted to handle combined radial and axial loads with superior efficiency, making them indispensable for heavy-duty machinery, precision equipment, and high-performance automotive systems.

### **Technical Features & Design Advantages**
NTN’s tapered roller bearings are manufactured to **ISO metric standards**, ensuring global compatibility and seamless integration into a wide range of machinery. Key design features include:

– **Optimized Roller & Raceway Geometry**: Precision-ground tapered rollers and raceways minimize friction while distributing loads evenly, enhancing bearing life and reducing wear.
– **High-Grade Materials**: Constructed from premium **case-hardened chromium steel**, these bearings offer exceptional resistance to fatigue, shock loads, and harsh operating conditions.
– **Advanced Cage Designs**: Options include **pressed steel cages** (for high-speed stability) and **machined brass cages** (for extreme-load applications), ensuring optimal roller guidance and lubrication retention.
– **Sealing & Lubrication Options**: Configurable with **contact or non-contact seals**, as well as specialized grease formulations for extended service intervals in contaminated environments.

### **Performance Benefits**
NTN’s tapered roller bearings excel in applications requiring **rigidity, high load capacity, and precise alignment**:

– **Superior Load Handling**: The tapered design efficiently manages **combined radial and thrust loads**, making them ideal for gearboxes, wheel hubs, and heavy industrial equipment.
– **Extended Service Life**: Reduced internal sliding friction and optimized heat dissipation contribute to **longer operational lifespans**, even under continuous high-stress conditions.
– **Enhanced Operational Efficiency**: Precision manufacturing ensures **low noise and vibration**, critical for automotive drivetrains, wind turbines, and precision machine tools.

### **Typical Applications**
These bearings are widely used across industries where **durability and precision** are non-negotiable:

– **Automotive Systems**: Wheel bearings, differential assemblies, and transmission systems in passenger vehicles, trucks, and off-road machinery.
– **Industrial Machinery**: Conveyors, mining equipment, construction machinery, and agricultural gearboxes subjected to heavy loads and harsh environments.
– **Precision Equipment**: Machine tool spindles, robotics, and aerospace components requiring **high rotational accuracy and rigidity**.

### **Conclusion**
NTN’s **Metric ISO Series Tapered Roller Bearings** and **Tapered Roller Sets** combine cutting-edge engineering with robust materials to deliver **peak performance in the most demanding applications**. Whether in automotive drivetrains or heavy industrial systems, these bearings provide **reliable load support, reduced maintenance, and extended operational life**—making them a trusted choice for engineers worldwide.

For applications where **precision, strength, and endurance** are critical, NTN’s tapered roller bearings stand as a benchmark of quality and innovation.

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Part Number d D T r Mass
32910
50.000 mm
72.000 mm
15.000 mm
0.600 mm
0.192 kg
32920X
100.000 mm
140.000 mm
25.000 mm
1.500 mm
32910X
50.000 mm
72.000 mm
15.000 mm
0.600 mm
32911
55.000 mm
80.000 mm
17.000 mm
1.000 mm
32911X
55.000 mm
80.000 mm
17.000 mm
1.000 mm
32912X
60.000 mm
85.000 mm
17.000 mm
1.000 mm
32912XA
60.000 mm
85.000 mm
17.000 mm
1.000 mm
0.296 kg
32913X
65.000 mm
90.000 mm
17.000 mm
1.000 mm
32913XA
65.000 mm
90.000 mm
17.000 mm
1.000 mm
0.325 kg
32914X
70.000 mm
100.000 mm
20.000 mm
1.000 mm
0.487 kg
32915X
75.000 mm
105.000 mm
20.000 mm
1.000 mm
32916X
80.000 mm
110.000 mm
20.000 mm
1.000 mm
32916XU
80.000 mm
110.000 mm
20.000 mm
1.000 mm
0.540 kg
32917X
85.000 mm
120.000 mm
23.000 mm
1.500 mm
0.773 kg
32907X
35.000 mm
55.000 mm
14.000 mm
0.600 mm
0.121 kg
32918X
90.000 mm
125.000 mm
23.000 mm
1.500 mm
0.817 kg
32908X
40.000 mm
62.000 mm
15.000 mm
0.600 mm
0.161 kg
32919X
95.000 mm
130.000 mm
23.000 mm
1.500 mm
323138
190.000 mm
120.000 mm
N/A
5.000 mm
32314
70.000 mm
150.000 mm
54.000 mm
2.000 mm
4.460 kg