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
30312
60.000 mm
130.000 mm
33.500 mm
2.000 mm
2.060 kg
30316D
80.000 mm
170.000 mm
42.500 mm
2.000 mm
4.110 kg
30312D
60.000 mm
130.000 mm
33.500 mm
2.000 mm
1.970 kg
30312DSTPX1
60.000 mm
130.000 mm
33.500 mm
2.500 mm
30313
65.000 mm
140.000 mm
36.000 mm
2.500 mm
2.550 kg
30313D
65.000 mm
140.000 mm
36.000 mm
2.000 mm
2.420 kg
30313DST
65.000 mm
140.000 mm
36.000 mm
2.500 mm
30313DSTDT+7.#01
65.000 mm
140.000 mm
N/A
1.200 mm
30314
70.000 mm
150.000 mm
38.000 mm
2.000 mm
3.060 kg
30314D
70.000 mm
150.000 mm
38.000 mm
2.000 mm
2.920 kg
30314DST
70.000 mm
150.000 mm
38.000 mm
2.500 mm
30314DSTDT+7DX
70.000 mm
150.000 mm
N/A
2.500 mm
30315
75.000 mm
160.000 mm
40.000 mm
2.000 mm
3.570 kg
30315D
75.000 mm
160.000 mm
40.000 mm
2.000 mm
3.470 kg
30311D
55.000 mm
120.000 mm
31.500 mm
2.000 mm
1.590 kg
30315DU
75.000 mm
160.000 mm
40.000 mm
2.500 mm
3.540 kg
30311DDF
55.000 mm
120.000 mm
N/A
1.000 mm
30315DUDFCS120
75.000 mm
160.000 mm
N/A
2.500 mm
7.200 kg
30307C
35.000 mm
80.000 mm
22.750 mm
1.500 mm
30307D
35.000 mm
80.000 mm
22.750 mm
1.500 mm
0.530 kg