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
60/32ZZ
32
58
13
1
16600
9150
12000
6807NR
35
47
7
0.3
5400
4100
14000
16000
62/32
32
65
17
1
22800
11600
10000
12000
6807VV
35
47
7
0.3
5400
4100
14000
62/32DDU
32
65
17
1
22800
11600
7100
6807ZZ
35
47
7
0.3
5400
4100
14000
62/32N
32
65
17
1
22800
11600
10000
12000
6907
35
55
10
0.6
11600
7250
12000
15000
62/32NR
32
65
17
1
22800
11600
10000
12000
6907DDU
35
55
10
0.6
11600
7250
7500
62/32VV
32
65
17
1
22800
11600
10000
6907N
35
55
10
0.6
11600
7250
12000
15000
62/28ZZ
28
58
16
1
18300
9500
12000
6906NR
30
47
9
0.3
7950
5000
14000
17000
6306DDU
30
72
19
1.1
29300
15000
6700
63/28
28
68
18
1.1
29400
14000
10000
13000
6906VV
30
47
9
0.3
7950
5000
14000
63/28DDU
28
68
18
1.1
29400
14000
7500
6906ZZ
30
47
9
0.3
7950
5000
14000
63/28N
28
68
18
1.1
29400
14000
10000
13000
16006
30
55
9
0.3
12400
7350
13000
15000
63/28NR
28
68
18
1.1
29400
14000
10000
13000
6006DDU
30
55
13
1
14600
8300
8000
63/28VV
28
68
18
1.1
29400
14000
10000