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
32006X
30.000 mm
55.000 mm
17.000 mm
1.000 mm
0.166 kg
32006XP5
30.000 mm
55.000 mm
17.000 mm
1.000 mm
0.166 kg
32007
35.000 mm
62.000 mm
18.000 mm
1.000 mm
0.224 kg
32007X
35.000 mm
62.000 mm
18.000 mm
1.000 mm
0.224 kg
32007XP5
35.000 mm
62.000 mm
18.000 mm
1.000 mm
0.224 kg
32007XP6
35.000 mm
62.000 mm
18.000 mm
1.000 mm
32008X
40.000 mm
68.000 mm
19.000 mm
1.000 mm
0.273 kg
32008XDB+10/G045P5
40.000 mm
68.000 mm
N/A
N/A
32008XP5
40.000 mm
68.000 mm
19.000 mm
1.000 mm
0.273 kg
32008XST
40.000 mm
68.000 mm
19.000 mm
1.000 mm
32008XU
40.000 mm
68.000 mm
19.000 mm
1.000 mm
32008XUP4
40.000 mm
68.000 mm
19.000 mm
1.000 mm
0.271 kg
32009X
45.000 mm
75.000 mm
20.000 mm
1.000 mm
0.346 kg
32009XP5
45.000 mm
75.000 mm
20.000 mm
1.000 mm
0.346 kg
31311A
55.000 mm
120.000 mm
31.500 mm
2.000 mm
31313A
65.000 mm
140.000 mm
36.000 mm
2.500 mm
31314A
70.000 mm
150.000 mm
38.000 mm
2.500 mm
31320X
100.000 mm
215.000 mm
56.500 mm
3.000 mm
31321X
105.000 mm
225.000 mm
58.000 mm
3.000 mm
31322X
110.000 mm
240.000 mm
63.000 mm
3.000 mm
31324X
120.000 mm
260.000 mm
68.000 mm
3.000 mm
9.830 kg
31324XUS30-W1ND
120.000 mm
260.000 mm
68.000 mm
3.000 mm
31326X
130.000 mm
280.000 mm
72.000 mm
4.000 mm
31328X
140.000 mm
300.000 mm
70.000 mm
4.000 mm