Nut

**Introduction to NSK Bearing Accessories Nut: Precision, Reliability, and Performance in Motion Control**

In the world of precision motion and control, every component plays a critical role in ensuring efficiency, durability, and optimal performance. Among these components, the **NSK Bearing Accessories Nut** stands out as a vital element designed to enhance the functionality and longevity of bearing systems in demanding industrial, automotive, and precision equipment applications. Engineered with meticulous attention to detail, NSK’s accessory nuts provide secure fastening, precise alignment, and reliable load distribution—key factors in minimizing vibration, reducing wear, and maintaining operational accuracy.

### **Technical Features and Design Excellence**
The NSK Bearing Accessories Nut is crafted from high-quality materials, such as hardened steel or corrosion-resistant alloys, ensuring exceptional strength and durability under high-stress conditions. Its precision-threaded design guarantees a tight, backlash-free fit, which is crucial for maintaining bearing preload and preventing axial displacement in rotating assemblies. Key features include:

– **Optimized Thread Geometry**: Ensures smooth engagement with mating components, reducing the risk of cross-threading and improving installation efficiency.
– **Surface Treatments**: Advanced coatings, such as phosphate or zinc plating, enhance corrosion resistance and reduce friction, extending service life in harsh environments.
– **Locking Mechanisms**: Some variants incorporate integrated locking features (e.g., nylon inserts or metal deformation zones) to prevent loosening due to vibration or dynamic loads.

### **Performance Advantages for Demanding Applications**
NSK’s accessory nuts are engineered to deliver unmatched performance in critical applications where precision and reliability are non-negotiable. By ensuring consistent clamping force and alignment, these nuts contribute to:

– **Reduced Maintenance Downtime**: Secure fastening minimizes bearing wear and prevents premature failure, lowering total cost of ownership.
– **Enhanced System Rigidity**: Improved load distribution helps maintain precision in high-speed spindles, robotics, and CNC machinery.
– **Vibration Damping**: Tight tolerances and secure locking mitigate vibration-induced noise and fatigue, essential for automotive drivetrains and industrial gearboxes.

### **Typical Applications Across Industries**
The versatility of NSK Bearing Accessories Nuts makes them indispensable in a wide range of applications, including:

– **Industrial Machinery**: Used in spindle units, conveyor systems, and heavy-duty gearboxes where precise bearing retention is critical.
– **Automotive Systems**: Ideal for wheel hubs, transmission assemblies, and electric vehicle (EV) motor bearings, ensuring safety and performance under dynamic loads.
– **Precision Equipment**: Applied in medical devices, semiconductor manufacturing tools, and aerospace actuators, where micron-level accuracy is paramount.

By integrating NSK’s Bearing Accessories Nut into your motion control systems, you benefit from a component designed to meet the highest standards of quality and performance. Whether in high-speed automation, heavy industrial equipment, or cutting-edge automotive technologies, NSK’s engineering expertise ensures reliability when it matters most.

For industries that demand precision, durability, and seamless operation, the NSK Bearing Accessories Nut is a trusted solution—delivering the stability and performance needed to keep systems running smoothly, efficiently, and without compromise.

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Designations Shaft diameter (Reference) Basic Dimensions Associated products
d
mm
d2
mm
B
mm
G Stopper Lock-Washer
AN05
25
38
7
M25x1.5
AW05X
AN06
30
45
7
M30x1.5
AW06X
AN07
35
52
8
M35x1.5
AW07X
AN08
40
58
9
M40x1.5
AW08X
AN09
45
65
10
M45x1.5
AW09X
AN10
50
70
11
M50x1.5
AW10X
AN11
55
75
11
M55x2
AW11X
AN12
60
80
11
M60x2
AW12X
AN13
65
85
12
M65x2
AW13X
AN14
70
92
12
M70x2
AW14X
AN15
75
98
13
M75x2
AW15X
AN16
80
105
15
M80x2
AW16X
AN17
85
110
16
M85x2
AW17X
AN18
90
120
16
M90x2
AW18X
AN19
95
125
17
M95x2
AW19X
AN20
100
130
18
M100x2
AW20X
AN21
105
140
18
M105x2
AW21X
AN22
110
145
19
M110x2
AW22X
AN23
115
150
19
M115x2
AW23
ANL24
120
145
20
M120x2
AWL24
AN24
120
155
20
M120x2
AW24
AN25
125
160
21
M125x2
AW25
ANL26
130
155
21
M130x2
AWL26
AN26
130
165
21
M130x2
AW26