Cartridge Units

**Introduction to NSK Bearing Units & Cartridge Units: Precision Motion Solutions for Demanding Applications**

In industries where reliability, precision, and durability are critical, NSK’s **Bearing Units and Cartridge Units** stand out as high-performance solutions designed to optimize motion control in demanding environments. These precision-engineered components are integral to a wide range of applications, from industrial machinery and automotive systems to medical devices and robotics, where smooth rotational performance and long service life are essential.

### **Technical Features & Design Excellence**
NSK’s **Bearing Units** and **Cartridge Units** incorporate advanced bearing technology within a robust, pre-assembled housing, ensuring ease of installation and maintenance-free operation. Key features include:

– **High-Precision Bearings:** Equipped with deep groove ball bearings or specialty bearings (such as angular contact or tapered roller bearings) for optimal load capacity and rotational accuracy.
– **Sealed & Lubricated for Life:** Many units come with integrated seals and pre-greased bearings, minimizing contamination and eliminating the need for relubrication.
– **Rigid Housing Designs:** Manufactured from high-strength cast iron, pressed steel, or stainless steel, providing superior alignment stability and resistance to shock loads.
– **Interchangeability & Standardization:** Compliant with ISO and JIS standards, ensuring compatibility with global machinery designs and simplifying replacements.
– **Thermal & Corrosion Resistance:** Special coatings and materials are available for harsh environments, including food processing, chemical exposure, or high-temperature applications.

### **Performance Advantages**
NSK’s Cartridge Bearing Units deliver several operational benefits:

– **Reduced Downtime:** Pre-assembled units with sealed bearings prevent premature failure due to dust, moisture, or misalignment.
– **Energy Efficiency:** Low-friction designs minimize power consumption in conveyor systems, pumps, and electric motors.
– **Noise & Vibration Damping:** Precision-ground components ensure smooth, quiet operation, critical for medical equipment and precision manufacturing.
– **Extended Service Life:** Advanced materials and lubrication technologies enhance durability, even under heavy radial or axial loads.

### **Typical Applications**
These units are widely used across industries where reliability is non-negotiable:

– **Industrial Machinery:** Conveyors, gearboxes, and agricultural equipment benefit from their robustness in dusty or wet conditions.
– **Automotive Systems:** Wheel hubs, steering columns, and transmission assemblies rely on their high load capacity and precision.
– **Precision Equipment:** Robotics, CNC spindles, and medical imaging devices demand the low-vibration performance of NSK’s cartridge designs.

By integrating NSK’s **Bearing Units and Cartridge Units**, engineers can achieve superior motion control with reduced maintenance, ensuring efficiency and longevity in even the most challenging applications. Whether in high-speed automation or heavy industrial use, NSK’s solutions provide the reliability needed to keep systems running smoothly.

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Designations Nominal Dimensions Basic Load Ratings Included products
d
mm
H
mm
B,B1
mm
Cr
kN
C0r
kN
Bearing Housing
UKC211D1
50
125
59
43.5
29.2
UK211D1
C211D1
UCC210D1
50
120
51.6
35
23.2
UC210D1
C210D1
UKC318D1
80
225
86
143
107
UK318D1
C318D1
UCC321D1
105
260
112
184
153
UC321D1
C321D1
UKC322D1
100
300
105
205
179
UK322D1
C322D1
UCC320D1
100
260
108
173
141
UC320D1
C320D1
UCC319D1
95
240
103
153
119
UC319D1
C319D1
UKC320D1
90
260
97
173
141
UK320D1
C320D1
UCC318D1
90
225
96
143
107
UC318D1
C318D1
UKC319D1
85
240
90
153
119
UK319D1
C319D1
UCC317D1
85
215
96
133
97
UC317D1
C317D1
UKC313D1
60
170
65
92.5
60
UK313D1
C313D1
UCC316D1
80
200
86
123
86.5
UC316D1
C316D1
UKC317D1
75
215
82
133
97
UK317D1
C317D1
UCC315D1
75
190
82
113
77
UC315D1
C315D1
UKC316D1
70
200
78
123
86.5
UK316D1
C316D1
UCC314D1
70
180
78
104
68
UC314D1
C314D1
UKC315D1
65
190
73
113
77
UK315D1
C315D1
UCC313D1
65
170
75
92.5
60
UC313D1
C313D1
UCC213D1
65
140
65.1
57.5
40
UC213D1
C213D1
UKC310D1
45
140
55
62
38.5
UK310D1
C310D1
UCC309D1
45
130
57
53
32
UC309D1
C309D1
UKCX10D1
45
130
55
43.5
29.2
UKX10D1
CX10D1
UCC306D1
30
100
43
26.7
15
UC306D1
C306D1