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
32084
420
620
125
118
100
6
5
2460000
4200000
HR32964J
320
440
76
76
57
4
3
1280000
2220000
32088
440
650
130
122
104
6
6
2740000
4600000
HR32064XJ
320
480
100
100
74
5
4
1850000
2910000
30264
320
580
104
92
75
6
5
2020000
2420000
32264
320
580
159
150
125
6
5
3500000
5050000
32364
320
670
210
200
170
7.5
7.5
5150000
7100000
32968
340
460
76
72
63
4
3
1120000
1940000
HR32968J
340
460
76
76
57
4
3
1290000
2220000
32068
340
520
112
106
92
6
5
2030000
3400000
32972
360
480
76
72
62
4
3
1160000
2100000
HR32972J
360
480
76
76
57
4
3
1330000
2340000
32072
360
540
112
106
92
6
5
2060000
3500000
32976
380
520
87
82
71
5
4
1490000
2550000
32980
400
540
87
82
71
5
4
1540000
2700000
32080
400
600
125
118
100
6
5
2410000
4050000
32984
420
560
87
82
72
5
4
1590000
2810000
HR30240J
200
360
64
58
48
5
4
975000
1120000
32348
240
500
165
155
132
6
5
3100000
4100000
32964
320
440
76
72
63
4
3
1110000
1880000