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
H3168
320
340
254
A3168
AN68
AL68
H2352
240
260
208
A2352
AN52
AL52
H3268
320
340
288
A3268
AN68
AL68
H220X
90
100
58
A220X
AN20
AW20X
H3130
135
150
111
A3130
AN30
AW30
H3940
180
200
98
A3940
AN40
AW40
H320X
90
100
71
A320X
AN20
AW20X
H2330
135
150
139
A2330
AN30
AW30
H2320X
90
100
97
A2320X
AN20
AW20X
H3932
140
160
78
A3932
AN32
AW32
H222X
100
110
63
A222X
AN22
AW22X
H3032
140
160
93
A3032
ANL32
AWL32
H3122X
100
110
81
A3122X
AN22
AW22X
H3132
140
160
119
A3132
AN32
AW32
H2322X
100
110
105
A2322X
AN22
AW22X
H2332
140
160
147
A2332
AN32
AW32
H3024
110
120
72
A3024
ANL24
AWL24
H3934
150
170
79
A3934
AN34
AW34
H3124
110
120
88
A3124
AN24
AW24
H3034
150
170
101
A3034
ANL34
AWL34