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
220TMP12
220
300
63
2
770000
3100000
340
1000
240TMP11
240
300
45
1.5
435000
2160000
400
1200
240TMP12
240
340
78
2.1
965000
4100000
280
850
260TMP11
260
320
45
1.5
460000
2350000
400
1200
260TMP12
260
360
79
2.1
995000
4350000
280
850
280TMP11
280
350
53
1.5
545000
2800000
340
1000
280TMP12
280
380
80
2.1
1050000
4750000
260
800
300TMP11
300
380
62
2
795000
4000000
300
900
300TMP12
300
420
95
3
1390000
6250000
220
670
320TMP11
320
400
63
2
820000
4250000
300
900
180TMP94
180
360
109
5
1640000
6200000
240
710
320TMP12
320
440
95
3
1420000
6550000
220
670
190TMP12
190
270
62
3
705000
2630000
360
1100
190TMP93
190
320
78
4
1080000
4500000
300
900
200TMP11
200
250
37
1.1
365000
1690000
500
1500
200TMP93
200
340
85
4
1180000
5150000
280
800
220TMP11
220
270
37
1.1
385000
1860000
480
1500
75TMP93
75
135
36
1.5
209000
735000
710
2200
140TMP12
140
200
46
2
285000
1120000
500
1500
80TMP12
80
115
28
1
120000
420000
900
2600