Adapter

**Introduction to NSK Bearing Accessories: Precision Adapters for Optimal Motion Control**

In the world of precision motion and control, every component plays a critical role in ensuring efficiency, reliability, and longevity. NSK, a global leader in bearing and motion solutions, offers a range of high-performance **bearing accessories**, including precision **adapter sleeves**, designed to enhance the functionality and ease of installation of bearings in demanding applications. NSK’s **Adapter Sleeves** provide a secure and precise mounting solution for bearings with tapered bores, ensuring optimal alignment, reduced vibration, and extended service life in industrial machinery, automotive systems, and precision equipment.

### **Technical Features & Design Advantages**
NSK’s **Adapter Sleeves** are engineered to simplify the installation and adjustment of bearings while maintaining exceptional mechanical stability. Key features include:

– **Precision Tapered Fit**: The sleeves feature a finely machined taper that ensures a tight, concentric fit between the bearing and shaft, minimizing misalignment and preventing slippage under high loads.
– **High-Strength Materials**: Manufactured from high-quality steel, NSK adapters offer superior durability, resistance to wear, and the ability to withstand harsh operating conditions, including heavy radial and axial loads.
– **Easy Installation & Adjustment**: The design includes a threaded end with a lock nut and washer, allowing for quick mounting and fine-tuning of bearing preload, reducing downtime during assembly and maintenance.
– **Vibration Damping**: By ensuring a rigid connection between the bearing and shaft, NSK adapters help reduce vibration and noise, critical for high-speed applications such as electric motors and machine tool spindles.

### **Performance Benefits for Industrial & Automotive Applications**
NSK’s **Adapter Sleeves** enhance system performance across multiple industries by improving bearing stability and load distribution. Key advantages include:

– **Extended Bearing Life**: Proper alignment and secure mounting reduce uneven stress on bearings, preventing premature wear and failure.
– **Enhanced Load Capacity**: The tapered design distributes loads evenly, making these adapters ideal for heavy-duty machinery, conveyor systems, and gearboxes.
– **Versatility**: Compatible with a wide range of bearing types, including spherical roller bearings and ball bearings, NSK adapters are used in applications from wind turbines to automotive transmissions.

### **Typical Applications**
NSK’s precision adapters are widely used in:
– **Industrial Machinery**: Machine tool spindles, pumps, and compressors where precise bearing alignment is critical.
– **Automotive Systems**: Wheel hubs, drivetrains, and electric vehicle motors requiring high load capacity and vibration resistance.
– **Precision Equipment**: Robotics, medical devices, and aerospace components where reliability and minimal maintenance are essential.

By integrating NSK’s **Adapter Sleeves** into motion control systems, engineers and maintenance teams achieve superior performance, reduced maintenance costs, and longer operational lifespans—key factors in today’s high-demand industrial environments.

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Designations Dimensions Associated products
d1
mm
d
mm
B1
mm
Adapter Sleeve Nut Stopper Lock-Washer
H2309X
40
45
50
A2309X
AN09
AW09X
H210X
45
50
35
A210X
AN10
AW10X
H310X
45
50
42
A310X
AN10
AW10X
H2310X
45
50
55
A2310X
AN10
AW10X
H211X
50
55
37
A211X
AN11
AW11X
H311X
50
55
45
A311X
AN11
AW11X
H2311X
50
55
59
A2311X
AN11
AW11X
H212X
55
60
38
A212X
AN12
AW12X
H312X
55
60
47
A312X
AN12
AW12X
H2312X
55
60
62
A2312X
AN12
AW12X
H213X
60
65
40
A213X
AN13
AW13X
H313X
60
65
50
A313X
AN13
AW13X
H2313X
60
65
65
A2313X
AN13
AW13X
H314X
60
70
52
A314X
AN14
AW14X
H2314X
60
70
68
A2314X
AN14
AW14X
H215X
65
75
43
A215X
AN15
AW15X
H315X
65
75
55
A315X
AN15
AW15X
H2315X
65
75
73
A2315X
AN15
AW15X
H216X
70
80
46
A216X
AN16
AW16X
H316X
70
80
59
A316X
AN16
AW16X
H2316X
70
80
78
A2316X
AN16
AW16X
H217X
75
85
50
A217X
AN17
AW17X
H317X
75
85
63
A317X
AN17
AW17X