**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.
Part Number | B | Wi | R | Mass |
---|---|---|---|---|
247.650 mm |
74.613 mm |
6.400 mm |
55.900 kg |
|
247.650 mm |
63.500 mm |
6.400 mm |
37.700 kg |
|
254.000 mm |
79.771 mm |
6.900 mm |
||
254.000 mm |
42.863 mm |
3.600 mm |
||
254.000 mm |
71.438 mm |
3.600 mm |
||
254.000 mm |
130.175 mm |
1.500 mm |
||
257.175 mm |
57.150 mm |
6.400 mm |
26.200 kg |
|
237.330 mm |
65.088 mm |
6.400 mm |
21.306 kg |
|
257.175 mm |
57.150 mm |
10.700 mm |
20.780 kg |
|
241.300 mm |
52.388 mm |
6.400 mm |
||
260.350 mm |
58.738 mm |
6.400 mm |
||
241.122 mm |
68.263 mm |
6.400 mm |
||
260.350 mm |
114.300 mm |
6.400 mm |
||
234.950 mm |
49.213 mm |
6.400 mm |
||
234.950 mm |
66.675 mm |
7.100 mm |
30.660 kg |
|
234.950 mm |
112.713 mm |
6.400 mm |
||
234.950 mm |
112.713 mm |
6.400 mm |
33.300 kg |
|
234.950 mm |
209.550 mm |
1.500 mm |
||
234.950 mm |
112.713 mm |
6.400 mm |
||
234.848 mm |
53.975 mm |
3.600 mm |