Maximum-Type Ball Bearings

**Introduction to NSK’s Precision Motion and Control Technologies: Maximum Type Deep Groove Ball Bearings**

NSK is a global leader in precision motion and control technologies, renowned for engineering high-performance bearings that deliver exceptional reliability, efficiency, and longevity. Among its extensive portfolio, NSK’s **Deep Groove Ball Bearings – Maximum Type** stand out as a critical solution for demanding industrial, automotive, and precision equipment applications. These bearings are designed to optimize load capacity, minimize friction, and extend service life, even under high-speed or harsh operating conditions.

### **Technical Features & Design Advantages**
NSK’s **Maximum Type Deep Groove Ball Bearings** incorporate advanced engineering to enhance performance beyond standard deep groove designs. Key features include:

– **Optimized Internal Geometry**: The raceway and ball complement are precision-engineered to maximize radial and axial load capacity while reducing stress concentrations.
– **High-Grade Materials**: Manufactured from premium steel alloys with specialized heat treatment, these bearings offer superior hardness, wear resistance, and fatigue life.
– **Enhanced Sealing & Lubrication**: Options include shielded or sealed variants with high-performance grease, ensuring contamination resistance and maintenance-free operation.
– **Low Noise & Vibration**: Precision grinding and stringent quality control result in ultra-smooth operation, critical for applications requiring quiet performance, such as medical devices or electric vehicles.

### **Performance Advantages**
NSK’s Maximum Type bearings provide distinct advantages in motion control systems:

– **Higher Load Capacity**: The optimized internal geometry allows for increased dynamic and static load ratings, making them ideal for heavy-duty machinery.
– **Extended Service Life**: Advanced materials and lubrication technologies reduce wear, significantly prolonging bearing lifespan even in continuous operation.
– **Energy Efficiency**: Reduced friction lowers power consumption, contributing to sustainability in industrial and automotive applications.
– **Versatility**: Suitable for high-speed operations (with appropriate cage designs) and adaptable to combined radial and axial loads.

### **Typical Applications**
These bearings are widely used across industries where precision, durability, and efficiency are paramount:

– **Industrial Machinery**: Electric motors, pumps, gearboxes, and conveyor systems benefit from their high load capacity and reliability.
– **Automotive Systems**: Used in wheel hubs, transmissions, and electric vehicle (EV) drivetrains, where low friction and long life are essential.
– **Precision Equipment**: Robotics, medical devices, and semiconductor manufacturing equipment rely on their smooth, vibration-free operation.

By integrating cutting-edge materials, precision manufacturing, and rigorous testing, NSK’s **Maximum Type Deep Groove Ball Bearings** set the benchmark for performance in motion control applications. Their ability to withstand demanding conditions while maintaining efficiency makes them a preferred choice for engineers seeking dependable, high-performance solutions.

For industries pushing the limits of speed, precision, and durability, NSK’s bearings provide the technological edge needed to achieve optimal system performance.

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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
BL317ZZ
85
180
41
3
162000
145000
3600
BL218
90
160
30
2
117000
107000
3800
4500
BL218ZZ
90
160
30
2
117000
107000
3800
BL318
90
190
43
3
174000
161000
3400
4000
BL318ZZ
90
190
43
3
174000
161000
3400
BL215
75
130
25
1.5
79000
72000
4500
5600
BL219
95
170
32
2.1
133000
123000
3600
4300
BL215ZZ
75
130
25
1.5
79000
72000
4500
BL219ZZ
95
170
32
2.1
133000
123000
3600
BL315
75
160
37
2.1
138000
116000
4000
5000
BL319
95
200
45
3
186000
178000
2800
3600
BL315ZZ
75
160
37
2.1
138000
116000
4000
BL319ZZ
95
200
45
3
186000
178000
2800
BL216
80
140
26
2
92500
85000
4300
5300
BL220
100
180
34
2.1
149000
140000
3400
4000
BL216ZZ
80
140
26
2
92500
85000
4300
BL220ZZ
100
180
34
2.1
149000
140000
3400
BL316
80
170
39
2.1
150000
130000
3800
4500
BL221
105
190
36
2.1
162000
157000
3200
3800
BL316ZZ
80
170
39
2.1
150000
130000
3800