Cup for Tapered Roller Bearing – Inch Series and J Series

**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.

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Part Number D Wo W r Mass
47620A
133.350 mm
26.195 mm
33.338 mm
0.800 mm
0.584 kg
47622W
136.525 mm
55.563 mm
55.563 mm
3.300 mm
47623A
136.525 mm
44.450 mm
44.450 mm
N/A
1.250 kg
47820
146.050 mm
26.195 mm
33.338 mm
3.300 mm
0.660 kg
48750
190.500 mm
25.400 mm
34.925 mm
3.300 mm
2.690 kg
48120
161.925 mm
26.988 mm
34.925 mm
3.300 mm
0.828 kg
48220
182.563 mm
33.338 mm
39.688 mm
3.300 mm
1.200 kg
48320
190.500 mm
33.338 mm
39.688 mm
3.300 mm
1.161 kg
48620
200.025 mm
34.130 mm
41.275 mm
3.300 mm
1.387 kg
29522
107.950 mm
19.050 mm
25.400 mm
0.800 mm
0.283 kg
29620
112.713 mm
19.050 mm
25.400 mm
3.300 mm
0.266 kg
29620B
112.713 mm
19.050 mm
25.400 mm
3.300 mm
29630
120.650 mm
19.050 mm
25.400 mm
3.300 mm
0.481 kg
33462
117.475 mm
23.813 mm
30.162 mm
3.300 mm
0.434 kg
33472
120.000 mm
23.444 mm
29.794 mm
0.800 mm
0.521 kg
33475
120.650 mm
23.444 mm
29.794 mm
0.800 mm
34478
121.442 mm
17.463 mm
24.608 mm
2.000 mm
0.309 kg
34492A
125.052 mm
16.401 mm
23.731 mm
2.000 mm
0.376 kg
34500
127.000 mm
19.842 mm
26.988 mm
3.300 mm
0.533 kg
36620
193.675 mm
23.020 mm
28.575 mm
1.500 mm
1.580 kg
36620B
193.675 mm
23.020 mm
N/A
1.500 mm
1.656 kg
36920
227.013 mm
23.020 mm
30.162 mm
1.500 mm
0.898 kg
37624
158.750 mm
15.875 mm
23.020 mm
1.000 mm
37625
158.750 mm
15.875 mm
23.020 mm
3.300 mm
0.485 kg