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
LM72810
47.000 mm
12.000 mm
15.500 mm
1.000 mm
LM78310A
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13.600 mm
16.700 mm
1.500 mm
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15.000 mm
18.000 mm
1.500 mm
14525
68.263 mm
15.875 mm
20.638 mm
2.300 mm
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381.000 mm
57.150 mm
74.613 mm
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7.720 kg
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13.599 mm
16.703 mm
1.500 mm
0.073 kg
LM806610
88.900 mm
13.492 mm
19.050 mm
2.000 mm
0.134 kg
M903310
92.075 mm
16.670 mm
26.195 mm
1.500 mm
0.242 kg
11315
80.000 mm
14.288 mm
18.009 mm
1.500 mm
1329
53.975 mm
14.288 mm
19.367 mm
1.500 mm
18724
88.900 mm
13.495 mm
17.462 mm
1.300 mm
19281
71.438 mm
11.908 mm
15.875 mm
1.000 mm
1930
56.896 mm
15.875 mm
19.845 mm
0.800 mm
0.074 kg
15245PX5
62.000 mm
14.288 mm
19.050 mm
1.300 mm
0.081 kg
28315
80.000 mm
15.875 mm
21.006 mm
1.500 mm
3321
77.534 mm
23.812 mm
29.370 mm
3.300 mm
LM241110D
276.225 mm
73.025 mm
90.485 mm
0.800 mm
9.520 kg
3339
80.035 mm
23.812 mm
29.370 mm
1.500 mm
LM501311
73.431 mm
18.186 mm
23.012 mm
2.300 mm
0.142 kg
HM926716
279.400 mm
53.975 mm
82.550 mm
6.400 mm