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
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70.000 mm
42.000 mm
3.000 mm
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41.275 mm
3.600 mm
1.888 kg
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66.675 mm
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HM212049
66.675 mm
38.354 mm
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HM212049A
66.675 mm
38.354 mm
5.600 mm
HM212049X
66.675 mm
38.354 mm
7.100 mm
HM813844
66.675 mm
36.513 mm
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L812148
66.675 mm
17.602 mm
1.500 mm
0.342 kg
33269
68.263 mm
30.163 mm
3.600 mm
399A
68.263 mm
21.996 mm
2.300 mm
0.504 kg
399AS
68.263 mm
21.996 mm
5.100 mm
0.492 kg
480
68.263 mm
29.007 mm
3.600 mm
0.880 kg
5557
68.263 mm
43.764 mm
3.600 mm
560S
68.263 mm
36.678 mm
3.600 mm
1.100 kg
570
68.263 mm
36.170 mm
3.600 mm
9185
68.263 mm
46.038 mm
3.600 mm
9278
68.263 mm
46.038 mm
3.600 mm
H414245
68.263 mm
41.275 mm
3.600 mm
1.888 kg
5595
65.883 mm
43.764 mm
3.600 mm
H212749
65.987 mm
41.501 mm
7.100 mm
29590
66.675 mm
25.400 mm
3.600 mm
0.577 kg