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
423144CS700
220.000 mm
370.000 mm
120.000 mm
150.000 mm
5.000 mm
59.600 kg
423034
170.000 mm
260.000 mm
67.000 mm
84.000 mm
3.000 mm
14.300 kg
423036
180.000 mm
280.000 mm
74.000 mm
93.000 mm
3.000 mm
19.000 kg
423036E1
180.000 mm
280.000 mm
74.000 mm
93.000 mm
3.000 mm
19.000 kg
423038E1
190.000 mm
290.000 mm
75.000 mm
94.000 mm
3.000 mm
19.600 kg
423040E1
200.000 mm
310.000 mm
82.000 mm
103.000 mm
3.000 mm
25.700 kg
423044
220.000 mm
340.000 mm
90.000 mm
113.000 mm
4.000 mm
33.300 kg
423044E1
220.000 mm
340.000 mm
90.000 mm
113.000 mm
4.000 mm
33.300 kg
423048D1E1CS600
240.000 mm
360.000 mm
92.000 mm
115.000 mm
4.000 mm
36.100 kg
423048E1
240.000 mm
360.000 mm
92.000 mm
115.000 mm
4.000 mm
36.300 kg
423052
260.000 mm
400.000 mm
104.000 mm
130.000 mm
5.000 mm
53.000 kg
423052C3
260.000 mm
400.000 mm
104.000 mm
130.000 mm
5.000 mm
36.000 kg
423056
280.000 mm
420.000 mm
106.000 mm
133.000 mm
5.000 mm
57.300 kg
423060
300.000 mm
460.000 mm
118.000 mm
148.000 mm
5.000 mm
80.200 kg
423060C3
300.000 mm
460.000 mm
118.000 mm
148.000 mm
5.000 mm
80.200 kg
423064
320.000 mm
480.000 mm
121.000 mm
151.000 mm
5.000 mm
85.400 kg
423064JXM1CS1150P6
320.000 mm
480.000 mm
121.000 mm
151.000 mm
5.000 mm
85.000 kg
423068
340.000 mm
520.000 mm
133.000 mm
165.000 mm
6.000 mm
113.000 kg
423072
360.000 mm
540.000 mm
134.000 mm
169.000 mm
6.000 mm
120.000 kg
423076
380.000 mm
560.000 mm
135.000 mm
171.000 mm
6.000 mm
126.000 kg
423080
400.000 mm
600.000 mm
148.000 mm
185.000 mm
6.000 mm
163.000 kg
413144
220.000 mm
370.000 mm
107.000 mm
120.000 mm
5.000 mm
47.800 kg
413148
240.000 mm
400.000 mm
114.000 mm
128.000 mm
5.000 mm
58.900 kg
413152
260.000 mm
440.000 mm
128.000 mm
144.000 mm
5.000 mm
82.200 kg