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
430222X
110.000 mm
200.000 mm
74.000 mm
92.000 mm
3.000 mm
11.400 kg
430224X
120.000 mm
215.000 mm
78.000 mm
97.000 mm
3.000 mm
13.600 kg
430224XU
120.000 mm
215.000 mm
78.000 mm
97.000 mm
3.000 mm
13.740 kg
430226X
130.000 mm
230.000 mm
78.500 mm
98.000 mm
4.000 mm
15.900 kg
430226XD1C3
130.000 mm
230.000 mm
78.500 mm
98.000 mm
4.000 mm
15.900 kg
430228X
140.000 mm
250.000 mm
82.500 mm
102.000 mm
3.000 mm
19.200 kg
430230
150.000 mm
270.000 mm
87.000 mm
109.000 mm
4.000 mm
24.400 kg
430232
160.000 mm
290.000 mm
91.000 mm
115.000 mm
4.000 mm
31.900 kg
430234
170.000 mm
310.000 mm
97.000 mm
125.000 mm
5.000 mm
38.000 kg
423148
240.000 mm
400.000 mm
128.000 mm
160.000 mm
5.000 mm
71.700 kg
423152
260.000 mm
440.000 mm
144.000 mm
180.000 mm
5.000 mm
101.000 kg
423152C3
260.000 mm
440.000 mm
144.000 mm
180.000 mm
5.000 mm
99.800 kg
423156
280.000 mm
460.000 mm
146.000 mm
183.000 mm
6.000 mm
109.000 kg
423156JXM1CS945P6
280.000 mm
460.000 mm
146.000 mm
183.000 mm
6.000 mm
107.000 kg
423160
300.000 mm
500.000 mm
160.000 mm
200.000 mm
6.000 mm
144.000 kg
423160C3
300.000 mm
500.000 mm
160.000 mm
200.000 mm
6.000 mm
144.000 kg
423164
320.000 mm
540.000 mm
176.000 mm
220.000 mm
6.000 mm
188.000 kg
423168
340.000 mm
580.000 mm
190.000 mm
238.000 mm
6.000 mm
235.000 kg
423172
360.000 mm
600.000 mm
192.000 mm
240.000 mm
6.000 mm
248.000 kg
423176
380.000 mm
620.000 mm
194.000 mm
243.000 mm
6.000 mm
262.000 kg
423180
400.000 mm
650.000 mm
200.000 mm
250.000 mm
6.000 mm
294.000 kg
423184
420.000 mm
700.000 mm
224.000 mm
280.000 mm
6.000 mm
394.000 kg
423188
440.000 mm
720.000 mm
226.000 mm
283.000 mm
6.000 mm
412.000 kg
423192
460.000 mm
760.000 mm
240.000 mm
300.000 mm
7.500 mm
493.000 kg