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
6315N
75
160
37
2.1
125000
77000
4800
6000
16016
80
125
14
0.6
35000
29600
5300
6300
16015
75
115
13
0.6
30500
25300
5600
6700
6315NR
75
160
37
2.1
125000
77000
4800
6000
6016
80
125
22
1.1
52500
40000
6300
7100
6015
75
115
20
1.1
43500
33500
6700
8000
6315VV
75
160
37
2.1
125000
77000
4800
6016DDU
80
125
22
1.1
52500
40000
3200
6015DDU
75
115
20
1.1
43500
33500
3400
6315ZZ
75
160
37
2.1
125000
77000
4800
6016N
80
125
22
1.1
52500
40000
6300
7100
6015N
75
115
20
1.1
43500
33500
6700
8000
6816
80
100
10
0.6
13900
14500
6000
7100
6016NR
80
125
22
1.1
52500
40000
6300
7100
6015NR
75
115
20
1.1
43500
33500
6700
8000
6816DDU
80
100
10
0.6
13900
14500
3400
6016VV
80
125
22
1.1
52500
40000
6300
6015VV
75
115
20
1.1
43500
33500
6700
6816N
80
100
10
0.6
13900
14500
6000
7100
6016ZZ
80
125
22
1.1
52500
40000
6300
6014VV
70
110
20
1.1
42000
31000
7100
6815N
75
95
10
0.6
13800
13900
6300
7500
6814N
70
90
10
0.6
13300
12700
6700
8000
6014ZZ
70
110
20
1.1
42000
31000
7100