**NTN Tapered Roller Bearings: Precision, Durability, and Performance for Demanding Applications**
NTN is a global leader in bearing technology, renowned for its high-performance tapered roller bearings designed to meet the rigorous demands of industrial machinery, automotive systems, and precision equipment. Among NTN’s extensive bearing portfolio, the **Inch and J Series Tapered Roller Bearings** stand out for their exceptional load capacity, durability, and precision engineering. These bearings are specifically optimized to handle combined radial and axial loads, making them ideal for applications where reliability and long service life are critical.
### **Technical Features and Design Advantages**
NTN’s **Inch and J Series Tapered Roller Bearings** feature a precision-machined conical geometry, with tapered rollers guided by a robust ribbed inner ring (cone) and a matching outer ring (cup). This design ensures optimal load distribution, minimizing friction and wear while enhancing operational efficiency. Key technical features include:
– **High Load Capacity:** The tapered roller design effectively manages both radial and thrust loads, making these bearings suitable for heavy-duty applications.
– **Precision-Ground Surfaces:** Advanced manufacturing techniques ensure tight tolerances and smooth operation, reducing vibration and noise.
– **Heat-Treated Components:** High-carbon chromium steel construction, combined with specialized heat treatment, enhances hardness and fatigue resistance.
– **Interchangeability:** NTN’s Inch and J Series bearings conform to standardized dimensions, ensuring compatibility with industry specifications.
– **Sealed and Open Variants:** Options include open bearings for high-speed applications and sealed units for contamination resistance in harsh environments.
### **Performance Benefits**
NTN’s tapered roller bearings deliver superior performance in demanding conditions, offering:
– **Extended Service Life:** Advanced materials and precision engineering reduce wear, prolonging bearing life even under heavy loads.
– **Enhanced Efficiency:** Optimized internal geometry minimizes friction, lowering energy consumption and operating temperatures.
– **Reliability in Harsh Conditions:** Whether in high-temperature industrial settings or high-load automotive applications, NTN bearings maintain consistent performance.
– **Easy Maintenance:** Standardized designs simplify installation and replacement, reducing downtime.
### **Components for Tapered Roller Bearings: Cups and Cones**
NTN provides **precision-engineered cups and cones** for tapered roller bearings, ensuring seamless compatibility and performance. The **cup (outer ring)** is designed to perfectly match the cone (inner ring assembly), maintaining optimal alignment and load distribution. These components are manufactured to exacting tolerances, ensuring smooth operation and long-term reliability.
### **Typical Applications**
NTN’s Inch and J Series Tapered Roller Bearings are widely used in:
– **Industrial Machinery:** Gearboxes, conveyors, mining equipment, and heavy machinery requiring high load capacity.
– **Automotive Systems:** Wheel hubs, differentials, transmissions, and axle systems where durability and precision are essential.
– **Precision Equipment:** Machine tools, agricultural machinery, and construction equipment demanding reliable rotational performance.
With a reputation for innovation and quality, NTN continues to set the benchmark for tapered roller bearing technology, delivering solutions that enhance performance, efficiency, and longevity across industries. Whether in automotive drivetrains or heavy industrial applications, NTN’s tapered roller bearings provide the reliability and precision needed to keep operations running smoothly.
| Part Number | D | Wo | W | r | Mass |
|---|---|---|---|---|---|
77.534 mm |
23.812 mm |
29.370 mm |
3.300 mm |
||
80.035 mm |
23.812 mm |
29.370 mm |
1.500 mm |
||
279.400 mm |
53.975 mm |
82.550 mm |
6.400 mm |
||
58.738 mm |
10.716 mm |
29.154 mm |
1.000 mm |
0.057 kg |
|
59.530 mm |
18.288 mm |
23.368 mm |
1.500 mm |
0.129 kg |
|
190.500 mm |
80.963 mm |
106.365 mm |
1.500 mm |
9.091 kg |
|
155.575 mm |
85.725 mm |
101.600 mm |
1.500 mm |
||
215.900 mm |
80.963 mm |
106.363 mm |
1.500 mm |
9.781 kg |
|
159.995 mm |
38.100 mm |
47.625 mm |
0.800 mm |
||
161.925 mm |
85.725 mm |
104.775 mm |
1.500 mm |
3.700 kg |
|
168.275 mm |
49.213 mm |
49.213 mm |
N/A |
||
180.975 mm |
85.725 mm |
104.775 mm |
1.500 mm |
9.440 kg |
|
171.450 mm |
53.183 mm |
N/A |
3.300 mm |
5.548 kg |
|
171.450 mm |
57.150 mm |
55.563 mm |
3.300 mm |
5.112 kg |
|
206.375 mm |
82.550 mm |
107.950 mm |
0.800 mm |
9.900 kg |
|
244.475 mm |
79.375 mm |
107.950 mm |
1.500 mm |
||
168.275 mm |
44.450 mm |
57.150 mm |
3.300 mm |
||
212.725 mm |
117.475 mm |
142.875 mm |
1.500 mm |
19.100 kg |
|
39.992 mm |
9.525 mm |
12.014 mm |
1.300 mm |
0.031 kg |
|
190.500 mm |
104.775 mm |
127.000 mm |
1.500 mm |
||
212.725 mm |
117.475 mm |
142.875 mm |
1.500 mm |
14.160 kg |
|
79.375 mm |
22.664 mm |
29.370 mm |
3.300 mm |
0.250 kg |
|
73.431 mm |
17.620 mm |
21.430 mm |
0.800 mm |
0.119 kg |
|
82.550 mm |
18.542 mm |
23.147 mm |
0.800 mm |
0.156 kg |