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
33262
66.675 mm
30.163 mm
3.600 mm
0.906 kg
39589
66.675 mm
30.163 mm
1.500 mm
39590
66.675 mm
30.163 mm
3.600 mm
0.828 kg
39590A
66.650 mm
30.163 mm
3.600 mm
39591
66.675 mm
30.163 mm
5.600 mm
0.829 kg
395A
66.675 mm
21.996 mm
0.800 mm
0.534 kg
395CS
66.675 mm
23.444 mm
3.600 mm
0.585 kg
395ES
66.675 mm
30.632 mm
3.600 mm
395S
66.675 mm
21.996 mm
3.600 mm
0.529 kg
3984
66.675 mm
30.048 mm
3.600 mm
0.725 kg
3994
66.675 mm
30.048 mm
5.600 mm
0.715 kg
479
66.675 mm
29.007 mm
2.300 mm
0.921 kg
560
66.675 mm
36.678 mm
3.600 mm
1.150 kg
6386
66.675 mm
56.007 mm
4.300 mm
2.253 kg
6386A
66.675 mm
56.007 mm
8.600 mm
6389
66.675 mm
56.007 mm
6.400 mm
641
66.675 mm
41.275 mm
3.600 mm
1.680 kg
HM212046
63.500 mm
38.354 mm
3.600 mm
1.351 kg
HM212047
63.500 mm
38.354 mm
7.100 mm
1.340 kg
HM813842
63.500 mm
36.513 mm
3.600 mm
1.484 kg
HM813842A
63.500 mm
36.513 mm
0.800 mm
L610549
63.500 mm
19.050 mm
1.500 mm
0.294 kg
M111048
63.500 mm
25.908 mm
0.800 mm
0.590 kg
39586
64.988 mm
30.925 mm
2.300 mm