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
6830DDU
150
190
20
1.1
52500
58500
1800
6830N
150
190
20
1.1
52500
58500
3200
3800
6830NR
150
190
20
1.1
52500
58500
3200
3800
6830VV
150
190
20
1.1
52500
58500
3200
6830ZZ
150
190
20
1.1
52500
58500
3200
6930
150
210
28
2
93500
90500
2600
3200
6930DDU
150
210
28
2
93500
90500
1700
6930ZZS
150
210
28
2
93500
90500
2600
16030
150
225
24
1.1
92500
91000
2600
3000
6030
150
225
35
2.1
138000
126000
2600
3000
6030DDU
150
225
35
2.1
138000
126000
1700
6030VV
150
225
35
2.1
138000
126000
2600
6030ZZ
150
225
35
2.1
138000
126000
2600
6230
150
270
45
3
194000
168000
2000
2600
6230ZZS
150
270
45
3
194000
168000
2000
6330
150
320
65
4
300000
284000
1800
2200
6330ZZS
150
320
65
4
300000
284000
1800
6832
160
200
20
1.1
53000
61000
2600
3200
6832DDU
160
200
20
1.1
53000
61000
1700
6832N
160
200
20
1.1
53000
61000
2600
3200
6832NR
160
200
20
1.1
53000
61000
2600
3200
6832VV
160
200
20
1.1
53000
61000
2600
6832ZZS
160
200
20
1.1
53000
61000
2600
6932
160
220
28
2
95500
96000
2600
3000