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
6813ZZ
65
85
10
0.6
13100
12100
7500
6913
65
90
13
1
19100
16100
7100
8500
6913DDU
65
90
13
1
19100
16100
4000
6913N
65
90
13
1
19100
16100
7100
8500
6913NR
65
90
13
1
19100
16100
7100
8500
6913VV
65
90
13
1
19100
16100
7100
6913ZZ
65
90
13
1
19100
16100
7100
16013
65
100
11
0.6
22500
18700
6700
8000
6013
65
100
18
1.1
33500
25200
7500
9000
6013DDU
65
100
18
1.1
33500
25200
4000
6013N
65
100
18
1.1
33500
25200
7500
9000
6013NR
65
100
18
1.1
33500
25200
7500
9000
6013VV
65
100
18
1.1
33500
25200
7500
6013ZZ
65
100
18
1.1
33500
25200
7500
6213
65
120
23
1.5
63000
40000
6300
7500
6213DDU
65
120
23
1.5
63000
40000
3600
6213N
65
120
23
1.5
63000
40000
6300
7500
6213NR
65
120
23
1.5
63000
40000
6300
7500
6213VV
65
120
23
1.5
63000
40000
6300
6213ZZ
65
120
23
1.5
63000
40000
6300
6313
65
140
33
2.1
102000
60000
5600
6700
6313DDU
65
140
33
2.1
102000
60000
3400
6313N
65
140
33
2.1
102000
60000
5600
6700
6313NR
65
140
33
2.1
102000
60000
5600
6700