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.

MORE +
CLOSE +
Designations Dimensions Associated products
d1
mm
d
mm
B1
mm
Adapter Sleeve Nut Stopper Lock-Washer
H3936
160
180
87
A3936
AN36
AW36
H3036
160
180
109
A3036
ANL36
AWL36
H3136
160
180
131
A3136
AN36
AW36
H3038
160
190
112
A3038
ANL38
AWL38
H3138
160
190
141
A3138
AN38
AW38
H2338
160
190
169
A2338
AN38
AW38
H3940
180
200
98
A3940
AN40
AW40
H204X
17
20
24
A204X
AN04
AW04X
H304X
17
20
28
A304X
AN04
AW04X
H2304X
17
20
31
A2304X
AN04
AW04X
H205X
20
25
26
A205X
AN05
AW05X
H305X
20
25
29
A305X
AN05
AW05X
H2305X
20
25
35
A2305X
AN05
AW05X
H206X
25
30
27
A206X
AN06
AW06X
H306X
25
30
31
A306X
AN06
AW06X
H2306X
25
30
38
A2306X
AN06
AW06X
H207X
30
35
29
A207X
AN07
AW07X
H307X
30
35
35
A307X
AN07
AW07X
H2307X
30
35
43
A2307X
AN07
AW07X
H208X
35
40
31
A208X
AN08
AW08X
H308X
35
40
36
A308X
AN08
AW08X
H2308X
35
40
46
A2308X
AN08
AW08X
H209X
40
45
33
A209X
AN09
AW09X
H309X
40
45
39
A309X
AN09
AW09X