Single-Direction Thrust Ball Bearings

**Introduction to NSK’s Single Direction Thrust Ball Bearings: Precision Motion and Control for Demanding Applications**

In the realm of precision motion and control, NSK stands as a global leader, delivering high-performance bearing solutions engineered for reliability, efficiency, and durability. Among its extensive portfolio, NSK’s **Single Direction Thrust Ball Bearings** excel in applications requiring robust axial load support with minimal friction, making them indispensable in industrial machinery, automotive systems, and precision equipment.

### **Technical Features and Design Excellence**
NSK’s Single Direction Thrust Ball Bearings are meticulously designed to handle unidirectional axial loads while maintaining smooth rotational performance. Key features include:
– **Optimized Raceway Geometry**: Precision-ground raceways and high-quality steel balls ensure uniform load distribution, reducing stress concentrations and extending service life.
– **Robust Cage Designs**: Available in pressed steel, machined brass, or polymer cages, these bearings minimize friction and wear while maintaining alignment under high-speed or high-load conditions.
– **Material Innovation**: Advanced steel alloys and heat treatment processes enhance hardness and fatigue resistance, ensuring consistent performance in harsh environments.
– **Sealing and Lubrication Options**: Customizable with shields, seals, or specialized lubricants to suit contamination-prone or high-temperature applications.

### **Performance Advantages**
NSK’s thrust ball bearings deliver measurable benefits for critical motion systems:
– **High Load Capacity**: Engineered to withstand significant axial loads without compromising rotational accuracy, ideal for heavy-duty presses, gearboxes, or lifting equipment.
– **Low Friction and Energy Efficiency**: Precision manufacturing reduces torque losses, contributing to energy savings in automotive transmissions or industrial pumps.
– **Long Service Life**: Superior materials and lubrication technologies minimize wear, reducing maintenance downtime in continuous-operation machinery.
– **Compact and Lightweight**: Space-saving designs enable integration into compact assemblies, such as robotics or aerospace actuators.

### **Typical Applications**
These bearings are widely deployed across industries where axial load management is critical:
– **Industrial Machinery**: Used in machine tool spindles, conveyor systems, and hydraulic pumps to ensure precise axial positioning.
– **Automotive Systems**: Found in clutch release mechanisms, steering columns, and transmission systems to handle dynamic thrust forces.
– **Precision Equipment**: Essential for medical devices, robotics, and optical instruments requiring smooth, backlash-free motion.

NSK’s Single Direction Thrust Ball Bearings exemplify the company’s commitment to innovation, combining cutting-edge engineering with rigorous quality standards. Whether in high-speed automation or rugged industrial environments, these bearings provide the reliability and precision demanded by modern motion control systems. By leveraging NSK’s expertise, engineers can optimize performance, reduce operational costs, and extend the lifespan of critical machinery.

For applications where axial load capacity and precision are non-negotiable, NSK’s thrust ball bearings deliver unmatched performance—proving why they remain the preferred choice for engineers worldwide.

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Designations Nominal Dimensions Basic Load Ratings Speeds
Limiting Speeds
d
mm
D
mm
T,T3
mm
T4
mm
r(min.)
mm
Ca
N
C0a
N
Grease
min-1
Oil (Oil-bath)
min-1
51107
35
52
12
0.6
22100
49500
4000
6000
53207
35
62
19.9
1
39500
78000
3000
4500
51207
35
62
18
1
39500
78000
3000
4500
53207U
35
62
19.9
22
1
39500
78000
3000
4500
51307
35
68
24
1
56000
105000
2400
3800
53307
35
68
25.6
1
56000
105000
2400
3800
53307U
35
68
25.6
28
1
56000
105000
2400
3800
53407
35
80
34
1.1
87500
155000
2000
3000
51407
35
80
32
1.1
87500
155000
2000
3000
53407U
35
80
34
37
1.1
87500
155000
2000
3000
51108
40
60
13
0.6
27100
63000
3600
5300
53208
40
68
20.3
1
47500
98500
2800
4300
51208
40
68
19
1
47500
98500
2800
4300
53208U
40
68
20.3
23
1
47500
98500
2800
4300
51308
40
78
26
1
70000
135000
2200
3400
53308
40
78
28.5
1
70000
135000
2200
3400
53308U
40
78
28.5
31
1
70000
135000
2200
3400
53408
40
90
38.2
1.1
103000
188000
1700
2600
51408
40
90
36
1.1
103000
188000
1700
2600
53408U
40
90
38.2
42
1.1
103000
188000
1700
2600
51109
45
65
14
0.6
28100
69000
3400
5000
53209
45
73
21.3
1
48000
105000
2600
4000
51209
45
73
20
1
48000
105000
2600
4000
53209U
45
73
21.3
24
1
48000
105000
2600
4000