Thrust Cylindrical Roller Bearings

**Introduction to NSK Thrust Cylindrical Roller Bearings: Precision, Performance, and Reliability**

In the demanding world of industrial machinery, automotive systems, and precision equipment, the ability to handle high axial loads with minimal friction and maximum reliability is critical. NSK’s **Thrust Cylindrical Roller Bearings** are engineered to meet these challenges, delivering exceptional performance in applications where heavy axial loads, high rigidity, and precise motion control are essential. As part of NSK’s comprehensive portfolio of **precision motion and control technologies**, these bearings combine advanced design, superior materials, and exacting manufacturing standards to ensure durability and efficiency in even the most rigorous operating conditions.

### **Technical Features and Design Excellence**
NSK’s Thrust Cylindrical Roller Bearings are designed with a robust construction that incorporates precision-ground cylindrical rollers arranged in a cage between hardened steel washers (shaft and housing washers). This configuration ensures optimal load distribution, minimizing stress concentrations and extending service life. Key technical features include:

– **High Axial Load Capacity**: The linear contact between rollers and raceways allows these bearings to support exceptionally high axial loads, making them ideal for heavy-duty applications.
– **Rigidity and Precision**: Tight tolerances and high-quality materials ensure minimal deformation under load, maintaining accuracy in precision equipment.
– **Low Friction and Heat Generation**: Optimized roller profiles and advanced cage designs reduce friction, enhancing efficiency and reducing energy consumption.
– **Robust Cage Options**: Depending on the application, cages are available in pressed steel, machined brass, or polymer materials, offering stability at high speeds or in corrosive environments.

### **Performance Advantages**
NSK’s thrust cylindrical roller bearings outperform conventional thrust bearings in several critical areas:

– **Extended Service Life**: Advanced heat treatment processes and superior surface finishes enhance wear resistance, reducing maintenance requirements.
– **High-Speed Capability**: Precision balancing and optimized lubrication options allow stable operation at elevated speeds.
– **Versatility**: Available in single-direction and double-direction configurations, these bearings can be customized for specific load and alignment requirements.

### **Typical Applications**
These bearings are widely used across industries where axial load support is paramount, including:

– **Industrial Machinery**: Heavy presses, machine tool spindles, and gearboxes.
– **Automotive Systems**: Transmissions, clutch assemblies, and electric vehicle drivetrains.
– **Precision Equipment**: Robotics, aerospace actuators, and medical imaging devices.

By integrating NSK’s Thrust Cylindrical Roller Bearings into your systems, you benefit from a proven solution that enhances performance, reduces downtime, and improves overall operational efficiency. Whether in high-load industrial environments or precision-critical applications, NSK’s engineering expertise ensures reliable motion control and long-term durability.

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Designations Nominal Dimensions Basic Load Ratings Speeds
Limiting Speeds
d
mm
D
mm
T,T3
mm
r (min.)
mm
Ca
N
C0a
N
Grease
min-1
Oil (Oil-bath)
min-1
45TMP11
45
65
14
0.6
33000
100000
1700
5000
85TMP12
85
125
31
1
151000
485000
800
2400
150TMP93
150
250
60
2.1
635000
2510000
400
1200
45TMP93
45
85
24
1
71000
233000
1100
3400
85TMP93
85
150
39
1.5
257000
995000
630
1900
160TMP11
160
200
31
1
173000
815000
630
1900
50TMP93
50
95
27
1.1
113000
350000
1000
3000
90TMP11
90
120
22
1
96000
370000
950
3000
160TMP93
160
270
67
3
745000
3150000
360
1100
50TMP74
50
110
27
1.1
139000
470000
900
2800
90TMP93
90
155
39
1.5
250000
885000
630
1900
170TMP12
170
240
55
1.5
485000
1960000
430
1300
55TMP93
55
105
30
1.1
134000
450000
900
2600
100TMP93
100
170
42
1.5
292000
1110000
560
1700
170TMP93
170
280
67
3
800000
3500000
340
1000
60TMP12
60
95
26
1
99000
325000
1000
3000
110TMP12
110
160
38
1.1
228000
855000
630
1900
180TMP93
180
300
73
3
1000000
4000000
320
950
60TMP93
60
110
30
1.1
139000
480000
850
2600
110TMP93
110
190
48
2
390000
1490000
500
1500