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
14136A
34.925 mm
26.721 mm
0.800 mm
0.232 kg
14136AA
34.925 mm
26.721 mm
0.800 mm
0.232 kg
14137A
34.925 mm
19.583 mm
1.500 mm
0.198 kg
14138A
34.925 mm
19.583 mm
3.600 mm
0.196 kg
14139
34.976 mm
19.583 mm
1.300 mm
0.198 kg
14585
34.925 mm
20.638 mm
3.600 mm
16137
34.925 mm
20.638 mm
3.600 mm
0.239 kg
25877
34.925 mm
24.608 mm
1.500 mm
0.302 kg
25877PX4V3
34.925 mm
24.608 mm
1.500 mm
25878
34.925 mm
24.608 mm
3.600 mm
0.300 kg
27875
34.925 mm
23.698 mm
0.800 mm
0.383 kg
2793
34.925 mm
25.654 mm
0.800 mm
0.345 kg
2796
34.925 mm
25.654 mm
3.600 mm
0.342 kg
3476
31.750 mm
29.771 mm
1.300 mm
0.509 kg
43125
31.750 mm
24.074 mm
1.500 mm
0.367 kg
443
31.750 mm
29.901 mm
0.800 mm
0.756 kg
HM88542
31.750 mm
27.757 mm
1.300 mm
0.376 kg
HM89440
31.750 mm
28.575 mm
0.800 mm
LM67045
31.750 mm
18.499 mm
2.000 mm
LM67048
31.750 mm
16.764 mm
0.118 kg
LM67048L
31.750 mm
16.764 mm
0.117 kg
LM67048XJXL
31.750 mm
16.840 mm
0.116 kg
LM67049A
31.750 mm
16.764 mm
0.800 mm
0.122 kg
M88046
31.750 mm
22.225 mm
1.500 mm
0.246 kg