**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 |
---|---|---|---|---|---|
50.005 mm |
9.525 mm |
6.749 mm |
1.000 mm |
0.034 kg |
|
311.150 mm |
65.088 mm |
82.550 mm |
6.400 mm |
||
514.350 mm |
63.500 mm |
82.550 mm |
0.500 mm |
13.500 kg |
|
317.500 mm |
111.125 mm |
146.050 mm |
1.500 mm |
||
152.400 mm |
30.162 mm |
39.688 mm |
3.300 mm |
||
110.000 mm |
46.038 mm |
52.385 mm |
0.800 mm |
||
111.125 mm |
63.500 mm |
79.375 mm |
1.500 mm |
||
136.525 mm |
16.670 mm |
21.433 mm |
1.500 mm |
0.270 kg |
|
47.000 mm |
12.000 mm |
15.500 mm |
1.000 mm |
||
61.973 mm |
13.600 mm |
16.700 mm |
1.500 mm |
||
61.973 mm |
15.000 mm |
18.000 mm |
1.500 mm |
||
68.263 mm |
15.875 mm |
20.638 mm |
2.300 mm |
||
381.000 mm |
57.150 mm |
74.613 mm |
3.300 mm |
7.720 kg |
|
228.600 mm |
38.100 mm |
53.975 mm |
3.300 mm |
||
88.900 mm |
19.050 mm |
25.400 mm |
3.300 mm |
||
180.975 mm |
35.720 mm |
53.975 mm |
3.300 mm |
2.180 kg |
|
190.500 mm |
101.600 mm |
127.000 mm |
1.500 mm |
13.400 kg |
|
73.025 mm |
15.083 mm |
18.258 mm |
1.500 mm |
0.104 kg |
|
196.850 mm |
85.725 mm |
101.600 mm |
0.800 mm |
||
148.430 mm |
21.433 mm |
28.575 mm |
3.000 mm |