Ball Bearings

**Introduction to NSK Bearing Units & Ball Bearings: Precision Motion and Control Solutions**

NSK is a global leader in precision motion and control technologies, delivering high-performance bearing solutions that enhance efficiency, reliability, and longevity in demanding industrial and automotive applications. Among its extensive product portfolio, **NSK Bearing Units and Ball Bearings** stand out for their advanced engineering, superior load capacity, and exceptional durability. Designed to meet the rigorous demands of modern machinery, these components play a critical role in minimizing friction, reducing energy consumption, and ensuring smooth rotational motion in everything from heavy industrial equipment to precision automotive systems.

### **Technical Features & Performance Advantages**

NSK Bearing Units integrate high-quality ball bearings with robust housings, offering a complete, ready-to-install solution that simplifies maintenance and improves operational reliability. Key features include:

– **Precision-Grade Ball Bearings**: Manufactured with high-grade steel and advanced heat treatment processes, NSK ball bearings deliver ultra-low friction, high-speed capability, and extended service life even under heavy radial and axial loads.
– **Sealed & Lubricated Designs**: Many NSK bearing units come with integrated seals and pre-lubrication, preventing contamination and reducing the need for frequent maintenance—ideal for harsh environments such as food processing, mining, or chemical industries.
– **Corrosion-Resistant Materials**: Options with stainless steel bearings or special coatings ensure resistance to moisture, chemicals, and extreme temperatures, making them suitable for marine, pharmaceutical, and cleanroom applications.
– **Plug-and-Play Installation**: Pre-aligned bearing units with standardized mounting dimensions (e.g., PNS, SN, or UCP series) allow for quick replacement and reduced downtime in conveyor systems, pumps, and gearboxes.

### **Typical Applications Across Industries**

NSK Bearing Units and Ball Bearings are widely used in sectors where precision, durability, and energy efficiency are paramount:

– **Industrial Machinery**: Conveyors, electric motors, and material handling systems benefit from NSK’s low-maintenance bearing units, which ensure smooth operation under continuous loads.
– **Automotive Systems**: From wheel hubs to transmission components, NSK’s high-speed ball bearings enhance vehicle performance while reducing noise and vibration.
– **Precision Equipment**: Robotics, medical devices, and semiconductor manufacturing rely on NSK’s ultra-precise bearings for repeatable motion control and minimal backlash.
– **Heavy-Duty Applications**: Steel mills, wind turbines, and construction machinery utilize NSK’s reinforced bearing units to withstand shock loads and harsh operating conditions.

By combining cutting-edge materials, precision manufacturing, and innovative sealing technologies, NSK Bearing Units and Ball Bearings set the benchmark for reliability in motion control. Whether optimizing production lines or enhancing automotive performance, NSK’s solutions ensure maximum uptime, reduced energy consumption, and long-term cost savings—proving why they are the preferred choice for engineers worldwide.

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Designations Nominal Dimensions Basic Load Ratings
d
mm
D
mm
B,B4
mm
B1
mm
C
mm
Cr
kN
C0r
kN
UC314D1
70
150
78
41
104
68
UC215-300D1
76.2
130
77.8
34
66
49.5
UCS314
70
150
78
41
104
68
UC315-300D1
76.2
160
82
43
113
77
UC215-215D1
74.612
130
77.8
34
66
49.5
UC216-302D1
79.375
140
82.6
35
72.5
53
UC315-215D1
74.612
160
82
43
113
77
UC316-302D1
79.375
170
86
45
123
86.5
UK215D1
75
130
44
73
34
66
49.5
UK216D1
80
140
45
78
35
72.5
53
UKS215
75
130
44
73
34
66
49.5
UKS216
80
140
45
78
35
72.5
53
UC212-205D1
58.738
110
65.1
27
52.5
36
UC312-206D1
60.325
130
71
36
82
52
UCS313
65
140
75
39
92.5
60
UK212D1
60
110
38
62
27
52.5
36
UC212-207D1
61.912
110
65.1
27
52.5
36
UC214-211D1
68.262
125
74.6
33
62
44
UKS212LN
60
110
38
62
27
52.5
36
UC312-207D1
61.912
130
71
36
82
52