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
6830N
150
190
20
1.1
52500
58500
3200
3800
6832
160
200
20
1.1
53000
61000
2600
3200
6830NR
150
190
20
1.1
52500
58500
3200
3800
6832DDU
160
200
20
1.1
53000
61000
1700
6224ZZ
120
215
40
2.1
171000
131000
2600
6026DDU
130
200
33
2
117000
101000
1900
6928NR
140
190
24
1.5
73500
72000
3200
3800
6324
120
260
55
3
227000
185000
2200
2800
6026N
130
200
33
2
117000
101000
3000
3600
6324DDU
120
260
55
3
227000
185000
1800
6026NR
130
200
33
2
117000
101000
3000
3600
6324ZZS
120
260
55
3
227000
185000
2200
6026ZZ
130
200
33
2
117000
101000
3000
6826
130
165
18
1.1
40500
44000
3600
4300
6226
130
230
40
3
184000
146000
2400
3000
6826DD
130
165
18
1.1
40500
44000
2000
6226ZZ
130
230
40
3
184000
146000
2400
6826N
130
165
18
1.1
40500
44000
3600
4300
6326
130
280
58
4
252000
214000
2200
2600
6826NR
130
165
18
1.1
40500
44000
3600
4300
6326ZZS
130
280
58
4
252000
214000
2200
6826VV
130
165
18
1.1
40500
44000
3600
6828
140
175
18
1.1
42000
48000
3400
4000
6024N
120
180
28
2
97000
80000
4000
4800