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
6332
160
340
68
4
305000
287000
1700
2000
6332ZZS
160
340
68
4
305000
287000
1700
6834
170
215
22
1.1
66000
75000
2600
3000
6834DDU
170
215
22
1.1
66000
75000
1600
6834VV
170
215
22
1.1
66000
75000
2600
6834ZZS
170
215
22
1.1
66000
75000
2600
6934
170
230
28
2
94500
97000
2400
2800
6934ZZS
170
230
28
2
94500
97000
2400
16034
170
260
28
1.5
126000
126000
2200
2600
6034
170
260
42
2.1
177000
161000
2200
2600
6034VV
170
260
42
2.1
177000
161000
2200
6034ZZS
170
260
42
2.1
177000
161000
2200
6234
170
310
52
4
234000
224000
1800
2200
6234ZZS
170
310
52
4
234000
224000
1800
6334
170
360
72
4
360000
355000
1600
2000
6836
180
225
22
1.1
66500
78500
2400
2800
6836VV
180
225
22
1.1
66500
78500
2400
6936
180
250
33
2
131000
128000
2200
2600
6936ZZS
180
250
33
2
131000
128000
2200
16036
180
280
31
2
159000
157000
2000
2400
6036
180
280
46
2.1
198000
185000
2000
2400
6036VV
180
280
46
2.1
198000
185000
2000
6036ZZS
180
280
46
2.1
198000
185000
2000
6236
180
320
52
4
250000
241000
1700
2000