Metric Series Tapered Roller Bearings

**Introduction to NSK’s Metric Series Tapered Roller Bearings: Precision, Durability, and Performance**

In the demanding world of industrial machinery, automotive systems, and precision equipment, the reliability and efficiency of rotating components are critical. NSK’s **Metric Series Tapered Roller Bearings** stand at the forefront of precision motion and control technologies, delivering exceptional load capacity, rigidity, and longevity in high-performance applications. Engineered with advanced materials and precision manufacturing techniques, these bearings are designed to handle combined radial and axial loads while maintaining smooth operation under extreme conditions.

### **Technical Features and Design Excellence**
NSK’s Metric Series Tapered Roller Bearings are meticulously crafted to meet the stringent demands of modern industrial and automotive applications. Key features include:

– **Optimized Roller and Raceway Geometry**: The tapered design ensures uniform stress distribution, reducing edge loading and extending service life.
– **High-Grade Materials**: Manufactured from premium steel alloys with advanced heat treatment processes, these bearings offer superior wear resistance and fatigue strength.
– **Precision Ground Surfaces**: Ultra-smooth raceways and rollers minimize friction, ensuring efficient power transmission and reduced energy loss.
– **Robust Cage Designs**: Options include pressed steel, machined brass, or polymer cages, each selected for optimal performance in specific operating environments (e.g., high speeds, corrosive conditions).
– **Sealing and Lubrication Options**: Configurations with integrated seals or shields protect against contamination, while specialized grease formulations enhance performance in high-temperature or high-speed applications.

### **Performance Advantages**
NSK’s tapered roller bearings excel in applications where reliability and precision are non-negotiable:

– **High Load Capacity**: The tapered geometry allows for simultaneous handling of heavy radial and thrust loads, making them ideal for gearboxes, wheel hubs, and heavy machinery.
– **Enhanced Rigidity and Stability**: Precision alignment ensures minimal deflection under load, critical for applications like machine tool spindles and industrial drivetrains.
– **Extended Service Life**: Advanced fatigue-resistant materials and optimized lubrication systems reduce maintenance intervals and downtime.
– **Energy Efficiency**: Low friction design contributes to reduced power consumption, aligning with modern sustainability goals.

### **Typical Applications**
NSK’s Metric Series Tapered Roller Bearings are widely used across industries, including:

– **Automotive Systems**: Wheel bearings, differential assemblies, and transmission systems benefit from their durability and load-handling capabilities.
– **Industrial Machinery**: Conveyors, crushers, and mining equipment rely on these bearings for their ability to withstand shock loads and harsh environments.
– **Precision Equipment**: Machine tools, robotics, and aerospace actuators demand the high rigidity and accuracy that NSK’s tapered roller bearings provide.

By combining cutting-edge engineering with decades of expertise, NSK ensures that its Metric Series Tapered Roller Bearings deliver unmatched performance, reliability, and efficiency—making them the preferred choice for engineers and manufacturers worldwide. Whether in high-speed automotive drivetrains or heavy industrial gearboxes, these bearings are built to excel under pressure while maintaining precision and longevity.

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Designations Nominal Dimensions Basic Load Ratings
d
mm
D
mm
T
mm
B
mm
C
mm
Cone r (min.)
mm
Cup r (min.)
mm
Cr
N
C0r
N
HR32032XJ
160
240
51
51
38
3
2.5
525000
750000
HR30232J
160
290
52
48
40
4
3
655000
730000
HR32232J
160
290
84
80
67
4
3
975000
1220000
30332D
160
340
75
68
48
5
4
830000
875000
30332
160
340
75
68
58
5
4
940000
960000
HR30332J
160
340
75
68
58
5
4
1120000
1180000
32332
160
340
121
114
95
5
4
1480000
1770000
32934
170
230
38
36
31
2.5
2.5
315000
485000
HR32934J
170
230
38
38
30
2.5
2
360000
560000
HR32034XJ
170
260
57
57
43
3
2.5
620000
890000
HR30234J
170
310
57
52
43
5
4
775000
885000
HR32234J
170
310
91
86
71
5
4
1140000
1450000
30334D
170
360
80
72
50
5
4
935000
1040000
HR30334J
170
360
80
72
62
5
4
1240000
1310000
30334
170
360
80
72
62
5
4
1040000
1080000
32334
170
360
127
120
100
5
4
1690000
2050000
HR32936J
180
250
45
45
34
2.5
2
435000
685000
HR32036XJ
180
280
64
64
48
3
2.5
785000
1130000
HR30236J
180
320
57
52
43
5
4
800000
930000
HR32236J
180
320
91
86
71
5
4
1180000
1540000
30336D
180
380
83
75
53
5
4
1010000
1120000
30336
180
380
83
75
64
5
4
1150000
1230000
32336
180
380
134
126
106
5
4
1870000
2290000
HR32938J
190
260
45
45
34
2.5
2
445000
715000