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
71412
104.775 mm
49.213 mm
3.600 mm
9.140 kg
782
104.775 mm
48.006 mm
3.600 mm
2.975 kg
786
104.775 mm
48.006 mm
6.400 mm
2.958 kg
787
104.775 mm
48.006 mm
7.100 mm
6.302 kg
NA782
104.775 mm
52.388 mm
3.600 mm
685-TRB
98.425 mm
41.275 mm
3.600 mm
2.330 kg
779
98.425 mm
48.006 mm
3.600 mm
7.275 kg
866
98.425 mm
57.531 mm
3.600 mm
9.616 kg
HH221442
98.425 mm
57.531 mm
3.600 mm
5.090 kg
HH224332
98.425 mm
66.675 mm
3.600 mm
HH421246
98.425 mm
63.500 mm
6.400 mm
4.980 kg
783
100.000 mm
48.006 mm
3.600 mm
7.143 kg
HH221447
99.982 mm
57.531 mm
6.400 mm
10.850 kg
HH224334
99.974 mm
66.675 mm
3.600 mm
HM220145
99.974 mm
52.499 mm
7.900 mm
HM220149
99.974 mm
41.999 mm
7.900 mm
JHH224333
100.000 mm
66.675 mm
7.000 mm
JHM720249
100.000 mm
40.000 mm
3.000 mm
3.070 kg
JM720249
100.000 mm
35.000 mm
3.000 mm
1.628 kg
52393
100.013 mm
36.116 mm
3.600 mm
1.853 kg
688TD
100.211 mm
95.250 mm
0.800 mm
52400
101.600 mm
36.116 mm
3.600 mm
1.782 kg
52400A
101.600 mm
36.116 mm
3.600 mm
3.795 kg
52400D
101.600 mm
79.375 mm
1.500 mm