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
LM11910XL
45.237 mm
15.494 mm
16.637 mm
1.300 mm
48320D
190.500 mm
73.025 mm
85.725 mm
0.800 mm
5.592 kg
48620D
200.025 mm
73.025 mm
87.315 mm
0.800 mm
6.540 kg
493D
136.525 mm
53.975 mm
69.850 mm
0.800 mm
1.404 kg
52637D
161.925 mm
61.912 mm
82.547 mm
0.800 mm
53375
95.250 mm
20.638 mm
30.958 mm
0.800 mm
0.365 kg
552D
123.825 mm
33.338 mm
38.100 mm
3.300 mm
55433D
109.982 mm
42.865 mm
63.500 mm
0.500 mm
56650D
165.100 mm
63.500 mm
82.550 mm
0.800 mm
572D
139.992 mm
66.675 mm
82.550 mm
0.800 mm
592D
152.400 mm
63.500 mm
82.550 mm
0.800 mm
6220-TRB
127.000 mm
41.275 mm
50.800 mm
3.300 mm
1.211 kg
6320-TRB
135.755 mm
44.450 mm
53.975 mm
3.300 mm
1.386 kg
6321-TRB
131.762 mm
44.450 mm
53.975 mm
3.300 mm
1
632D
136.525 mm
76.200 mm
95.250 mm
1.500 mm
6535W
161.925 mm
42.863 mm
53.975 mm
3.300 mm
66521DB
127.025 mm
52.324 mm
71.374 mm
4.600 mm
672D
168.275 mm
69.850 mm
92.075 mm
0.800 mm
67322D
196.850 mm
85.725 mm
101.600 mm
0.800 mm
7.050 kg
67720D
247.650 mm
84.138 mm
103.188 mm
0.800 mm
11.187 kg
67820CD
266.700 mm
84.138 mm
109.535 mm
0.800 mm
03162
41.275 mm
11.113 mm
14.288 mm
2.000 mm
0.035 kg
05175
44.450 mm
11.430 mm
15.494 mm
1.500 mm
0.034 kg
05185
47.000 mm
11.113 mm
14.381 mm
1.300 mm
0.046 kg