Single-Row Deep Groove Ball Bearings

**Introduction to NSK’s Single Row Deep Groove Ball Bearings: Precision, Performance, and Reliability**

NSK’s Single Row Deep Groove Ball Bearings represent the pinnacle of precision motion and control technology, engineered to deliver exceptional performance, durability, and efficiency across a wide range of industrial, automotive, and precision equipment applications. As a foundational component in rotating machinery, these bearings are designed to handle radial and axial loads simultaneously, offering smooth operation, low friction, and long service life even under demanding conditions.

### **Technical Features and Design Excellence**
NSK’s Single Row Deep Groove Ball Bearings are characterized by their robust construction and advanced material science. Key features include:
– **High-Precision Grinding:** Manufactured to ultra-tight tolerances, these bearings ensure minimal vibration and noise, making them ideal for high-speed applications.
– **Optimized Raceway Geometry:** The deep groove design allows for effective load distribution, enhancing both radial and axial load capacity.
– **Premium Steel and Lubrication Options:** Utilizing high-grade chromium steel (SUJ2 equivalent) and advanced heat treatment processes, NSK bearings achieve superior hardness and fatigue resistance. Custom lubrication options, including grease, oil, or solid lubricants, further extend service intervals.
– **Sealed and Shielded Variants:** Available with rubber seals (RS, 2RS) or metal shields (ZZ) to protect against contamination while retaining lubrication, improving reliability in harsh environments.

### **Performance Advantages**
NSK’s deep groove ball bearings are engineered to outperform competitors in critical areas:
– **Low Friction & Energy Efficiency:** Precision-ground surfaces and optimized internal geometries reduce torque losses, contributing to energy savings in motors, pumps, and automotive systems.
– **High-Speed Capability:** Advanced cage designs (stamped steel, machined brass, or polymer) minimize centrifugal forces, enabling stable operation at elevated speeds.
– **Extended Service Life:** NSK’s proprietary materials and surface treatments, such as Super-TF coating, enhance wear resistance and corrosion protection, reducing maintenance downtime.

### **Typical Applications**
These bearings are indispensable in industries where precision and reliability are paramount:
– **Industrial Machinery:** Electric motors, gearboxes, conveyors, and machine tool spindles benefit from their high load capacity and smooth rotation.
– **Automotive Systems:** Used in alternators, wheel hubs, and transmission systems, NSK bearings contribute to fuel efficiency and reduced NVH (Noise, Vibration, Harshness).
– **Precision Equipment:** Medical devices, robotics, and semiconductor manufacturing equipment rely on their quiet, vibration-free operation for accuracy.

With decades of expertise in bearing technology, NSK continues to innovate, ensuring that its Single Row Deep Groove Ball Bearings meet the evolving demands of modern engineering—delivering unmatched performance, reliability, and efficiency across global industries.

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Designations Nominal Dimensions Basic Load Ratings Speeds
Limiting Speeds
d
mm
D
mm
B
mm
r(min.)
mm
Cr
N
C0r
N
Grease
min-1
Oil (Oil-bath)
min-1
6907
35
55
10
0.6
11600
7250
12000
15000
6907DDU
35
55
10
0.6
11600
7250
7500
6907N
35
55
10
0.6
11600
7250
12000
15000
6907NR
35
55
10
0.6
11600
7250
12000
15000
6907VV
35
55
10
0.6
11600
7250
12000
6907ZZ
35
55
10
0.6
11600
7250
12000
16007
35
62
9
0.3
12800
8200
11000
13000
6007
35
62
14
1
17600
10300
13000
15000
6007DDU
35
62
14
1
17600
10300
6700
6007N
35
62
14
1
17600
10300
13000
15000
6007NR
35
62
14
1
17600
10300
13000
15000
6007VV
35
62
14
1
17600
10300
13000
60/28AVV
28
52
12
0.6
13700
7400
14000
60/28AZZ
28
52
12
0.6
13700
7400
14000
62/28
28
58
16
1
18300
9500
12000
14000
62/28DDU
28
58
16
1
18300
9500
8000
62/28N
28
58
16
1
18300
9500
12000
14000
62/28NR
28
58
16
1
18300
9500
12000
14000
62/28VV
28
58
16
1
18300
9500
12000
62/28ZZ
28
58
16
1
18300
9500
12000
63/28
28
68
18
1.1
29400
14000
10000
13000
63/28DDU
28
68
18
1.1
29400
14000
7500
63/28N
28
68
18
1.1
29400
14000
10000
13000
63/28NR
28
68
18
1.1
29400
14000
10000
13000