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
29630
120.650 mm
19.050 mm
25.400 mm
3.300 mm
0.481 kg
39521
112.713 mm
23.813 mm
30.163 mm
0.800 mm
0.360 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
6535
161.925 mm
42.863 mm
53.974 mm
3.300 mm
1.600 kg
6536
161.925 mm
42.863 mm
53.974 mm
0.800 mm
8520
327.025 mm
36.513 mm
52.388 mm
3.300 mm
9121
152.400 mm
31.750 mm
47.625 mm
3.300 mm
9220
161.925 mm
31.750 mm
49.212 mm
3.300 mm
3925
112.712 mm
23.813 mm
30.162 mm
0.800 mm
0.459 kg
9321
171.450 mm
31.750 mm
49.212 mm
3.300 mm
1.510 kg
3926
112.713 mm
26.988 mm
33.338 mm
3.300 mm
27620
125.413 mm
19.845 mm
25.400 mm
1.500 mm
0.342 kg
4520
101.200 mm
33.338 mm
39.687 mm
3.300 mm
29520
107.950 mm
19.050 mm
25.400 mm
3.300 mm
0.272 kg
4535
104.775 mm
33.338 mm
39.687 mm
3.300 mm
29521
110.000 mm
19.050 mm
25.400 mm
1.300 mm
0.334 kg
4536
111.125 mm
32.545 mm
38.895 mm
3.300 mm
5335
103.188 mm
36.513 mm
43.657 mm
3.300 mm
0.629 kg