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
32307
35.000 mm
80.000 mm
32.750 mm
1.500 mm
0.787 kg
32228
140.000 mm
250.000 mm
71.750 mm
2.500 mm
14.100 kg
32307C
35.000 mm
80.000 mm
32.750 mm
1.500 mm
32230
150.000 mm
270.000 mm
77.000 mm
3.000 mm
32308
40.000 mm
90.000 mm
35.250 mm
1.500 mm
1.080 kg
32230DFCS750
150.000 mm
270.000 mm
N/A
3.000 mm
32308C
40.000 mm
90.000 mm
35.250 mm
1.500 mm
32230UP5
150.000 mm
270.000 mm
77.000 mm
3.000 mm
18.200 kg
32232
160.000 mm
290.000 mm
84.000 mm
3.000 mm
32234
170.000 mm
310.000 mm
91.000 mm
4.000 mm
32236
180.000 mm
320.000 mm
91.000 mm
4.000 mm
32238
190.000 mm
340.000 mm
97.000 mm
4.000 mm
32240
200.000 mm
360.000 mm
104.000 mm
3.000 mm
43.100 kg
323/32C
32.000 mm
75.000 mm
29.750 mm
1.500 mm
32304
20.000 mm
52.000 mm
22.250 mm
1.500 mm
0.245 kg
32305
25.000 mm
62.000 mm
25.250 mm
1.500 mm
0.381 kg
32306
30.000 mm
72.000 mm
28.750 mm
1.500 mm
0.583 kg
32306C
30.000 mm
72.000 mm
28.750 mm
1.500 mm
32214P5
70.000 mm
125.000 mm
33.250 mm
1.500 mm
32224UP5
120.000 mm
215.000 mm
61.500 mm
2.500 mm
9.200 kg