Cone for Tapered Roller Bearing – Inch Series and J Series

**NTN Tapered Roller Bearings: Precision, Durability, and Performance for Demanding Applications**

NTN Corporation, a global leader in bearing technology, offers a comprehensive range of high-performance **Tapered Roller Bearings** designed to meet the rigorous demands of industrial machinery, automotive systems, and precision equipment. Among its extensive portfolio, NTN’s **Inch and J Series Tapered Roller Bearings** stand out for their superior load capacity, durability, and precision engineering. These bearings are optimized to handle combined radial and axial loads efficiently, making them indispensable in applications where reliability under heavy stress is critical.

### **Technical Features & Design Advantages**
NTN’s **Inch and J Series Tapered Roller Bearings** feature a precision-engineered conical geometry, with rollers arranged at an angle between the inner ring (cone) and outer ring (cup). This design ensures optimal load distribution, reducing friction and wear while enhancing operational longevity. Key features include:

– **High Load Capacity**: The tapered roller design effectively manages both radial and thrust loads, making these bearings ideal for heavy-duty applications.
– **Precision Ground Surfaces**: NTN employs advanced grinding techniques to ensure ultra-smooth contact surfaces, minimizing vibration and noise while improving efficiency.
– **Robust Materials & Heat Treatment**: Manufactured from high-grade steel and subjected to specialized heat treatment processes, these bearings offer exceptional hardness and fatigue resistance.
– **Interchangeability & Standard Compliance**: The **Inch Series** adheres to imperial measurements, while the **J Series** follows metric dimensions, ensuring compatibility with a wide range of machinery and automotive systems.

### **Key Components: Cone Assembly for Tapered Roller Bearings**
The **Cone (inner ring with rollers and cage)** is a critical component of NTN’s tapered roller bearings, engineered for seamless integration and peak performance. The cone assembly ensures:
– **Stable Roller Guidance**: The precision-machined cage retains rollers in optimal alignment, preventing skewing and ensuring smooth rotation.
– **Easy Maintenance & Replacement**: Designed for quick installation and serviceability, reducing downtime in industrial and automotive applications.

### **Performance Benefits**
NTN’s tapered roller bearings deliver:
– **Extended Service Life**: Advanced lubrication retention and wear-resistant materials reduce maintenance frequency.
– **Energy Efficiency**: Optimized internal geometry minimizes friction, lowering power consumption in rotating machinery.
– **High-Speed Capability**: Balanced design and superior materials allow stable operation even at elevated speeds.

### **Typical Applications**
These bearings are widely used in:
– **Industrial Machinery**: Gearboxes, conveyors, pumps, and mining equipment.
– **Automotive Systems**: Wheel hubs, transmissions, differentials, and axle assemblies.
– **Precision Equipment**: Agricultural machinery, construction vehicles, and material handling systems.

With a commitment to innovation and quality, NTN’s **Inch and J Series Tapered Roller Bearings** provide unmatched reliability, ensuring peak performance in the most demanding environments. Whether in heavy industry or high-precision automotive applications, NTN bearings are engineered to exceed expectations.

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Part Number B Wi R Mass
569
64.963 mm
36.170 mm
3.600 mm
6464
64.961 mm
54.229 mm
3.600 mm
747S
64.961 mm
46.673 mm
3.600 mm
J6392
65.000 mm
56.007 mm
3.000 mm
JH211749
65.000 mm
38.500 mm
3.000 mm
12.960 kg
JH211749A
65.000 mm
38.500 mm
7.000 mm
JLM710949
65.000 mm
23.000 mm
3.000 mm
0.503 kg
JLM710949C
65.000 mm
23.000 mm
3.000 mm
JM511945
65.000 mm
30.000 mm
3.000 mm
0.775 kg
JM511946
65.000 mm
28.000 mm
3.000 mm
0.745 kg
478
65.001 mm
29.007 mm
2.300 mm
6379
65.088 mm
56.007 mm
3.600 mm
2.327 kg
H715340
65.088 mm
46.038 mm
3.600 mm
395
63.500 mm
21.996 mm
3.600 mm
0.585 kg
39585
63.500 mm
30.163 mm
3.600 mm
0.903 kg
39585A
63.500 mm
30.163 mm
0.800 mm
39585D
63.500 mm
60.325 mm
0.800 mm
3982
63.500 mm
30.048 mm
3.600 mm
0.801 kg
3982X
63.500 mm
30.048 mm
7.100 mm
477
63.500 mm
29.007 mm
0.800 mm
483
63.500 mm
29.007 mm
3.600 mm
0.989 kg
5584
63.500 mm
43.764 mm
3.600 mm
1.506 kg
559
63.500 mm
36.678 mm
3.600 mm
1.232 kg
565
63.500 mm
36.170 mm
3.600 mm
1.457 kg