Double Row Tapered Roller Bearing

**NTN Tapered Roller Bearings: Precision, Durability, and High-Performance Solutions for Demanding Applications**

NTN is a globally recognized leader in the design and manufacturing of high-performance rolling bearings, with its tapered roller bearings standing out for their exceptional load capacity, precision, and reliability. Among NTN’s extensive bearing portfolio, the **Metric ISO Series Tapered Roller Bearings** and **Double Row Tapered Roller Bearings** are engineered to deliver superior performance in the most demanding industrial, automotive, and precision equipment applications. These bearings are designed to handle combined radial and axial loads efficiently, making them indispensable in systems where durability, high-speed operation, and long service life are critical.

### **Technical Features and Performance Advantages**

NTN’s **Metric ISO Series Tapered Roller Bearings** adhere to international dimensional standards (ISO 355), ensuring seamless compatibility with a wide range of machinery. Their precision-ground rollers and raceways are optimized for smooth rolling motion, reducing friction and heat generation. Key features include:

– **High Load Capacity**: The tapered geometry allows for effective distribution of radial and axial loads, making these bearings ideal for heavy-duty applications.
– **Enhanced Rigidity and Alignment**: The cup-and-cone design ensures stable operation even under misalignment conditions, improving overall system reliability.
– **Superior Lubrication Retention**: Advanced sealing options and optimized internal geometries help maintain lubrication, extending bearing life in harsh environments.
– **Interchangeability**: Conforming to ISO standards, these bearings offer easy replacement and integration into existing systems.

For applications requiring even greater load support and rigidity, NTN’s **Double Row Tapered Roller Bearings** provide an exceptional solution. These bearings incorporate two rows of tapered rollers, significantly increasing radial and axial load capacity while maintaining compact dimensions. Their design minimizes deflection under heavy loads, making them ideal for high-stress applications such as gearboxes, heavy machinery, and large industrial equipment.

### **Typical Applications**

NTN’s tapered roller bearings are widely used across multiple industries, including:

– **Industrial Machinery**: Machine tools, construction equipment, mining machinery, and conveyor systems benefit from their high load capacity and resistance to shock loads.
– **Automotive Systems**: Wheel hubs, transmissions, and differentials rely on these bearings for their ability to handle dynamic forces and high rotational speeds.
– **Precision Equipment**: Gear reducers, pumps, and wind turbine systems utilize NTN’s tapered roller bearings for their precision and long-term reliability.

By combining advanced materials, precision engineering, and rigorous quality control, NTN ensures that its tapered roller bearings meet the highest performance standards. Whether in heavy industrial applications or high-speed automotive systems, NTN’s Metric ISO Series and Double Row Tapered Roller Bearings deliver unmatched durability, efficiency, and operational excellence.

For demanding environments where performance cannot be compromised, NTN’s tapered roller bearings provide the strength, precision, and reliability needed to keep machinery running smoothly—ensuring reduced downtime and lower total cost of ownership.

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Part Number d D C B1 r Mass
423196
480.000 mm
790.000 mm
248.000 mm
310.000 mm
7.500 mm
548.000 kg
430208X
40.000 mm
80.000 mm
37.500 mm
45.000 mm
1.500 mm
0.929 kg
430209
45.000 mm
85.000 mm
37.500 mm
47.000 mm
1.500 mm
1.040 kg
430210
50.000 mm
90.000 mm
39.500 mm
49.000 mm
1.500 mm
1.180 kg
430211X
55.000 mm
100.000 mm
41.500 mm
51.000 mm
2.000 mm
1.550 kg
423084
420.000 mm
620.000 mm
150.000 mm
188.000 mm
6.000 mm
172.000 kg
423084JXM1CS1325P6
420.000 mm
620.000 mm
150.000 mm
188.000 mm
6.000 mm
172.000 kg
423088
440.000 mm
650.000 mm
157.000 mm
196.000 mm
6.000 mm
198.000 kg
423092
460.000 mm
680.000 mm
163.000 mm
204.000 mm
6.000 mm
225.000 kg
423096
480.000 mm
700.000 mm
165.000 mm
206.000 mm
6.000 mm
236.000 kg
423122
110.000 mm
180.000 mm
56.000 mm
70.000 mm
2.500 mm
6.380 kg
423124
120.000 mm
200.000 mm
62.000 mm
78.000 mm
2.500 mm
8.960 kg
423126
130.000 mm
210.000 mm
64.000 mm
80.000 mm
2.500 mm
9.770 kg
423128
140.000 mm
225.000 mm
68.000 mm
84.000 mm
3.000 mm
11.800 kg
423130
150.000 mm
250.000 mm
80.000 mm
100.000 mm
3.000 mm
18.000 kg
423132
160.000 mm
270.000 mm
86.000 mm
108.000 mm
3.000 mm
22.800 kg
423132E1
160.000 mm
270.000 mm
86.000 mm
108.000 mm
3.000 mm
22.800 kg
423134E1
170.000 mm
280.000 mm
88.000 mm
110.000 mm
3.000 mm
24.700 kg
423136
180.000 mm
300.000 mm
96.000 mm
120.000 mm
4.000 mm
31.400 kg
423136E1
180.000 mm
300.000 mm
96.000 mm
120.000 mm
4.000 mm
31.400 kg
423138
190.000 mm
320.000 mm
104.000 mm
130.000 mm
4.000 mm
38.600 kg
423140
200.000 mm
340.000 mm
112.000 mm
140.000 mm
4.000 mm
47.500 kg
423140C3
200.000 mm
340.000 mm
112.000 mm
140.000 mm
4.000 mm
46.500 kg
423144
220.000 mm
370.000 mm
120.000 mm
150.000 mm
5.000 mm
59.600 kg