Take-up Stretcher UnitsTM

**NSK Bearing Units Power Stretcher Units™ with Precision and Reliability**

In demanding industrial and automotive applications, the smooth and precise operation of motion systems is critical to performance, efficiency, and longevity. NSK, a global leader in motion and control technologies, has engineered advanced **Bearing Units for Stretcher Units™** that deliver exceptional durability, accuracy, and load-handling capabilities. These units are designed to meet the rigorous demands of applications where controlled linear or rotational motion is essential—such as textile machinery, automotive assembly systems, and precision manufacturing equipment.

### **Technical Features & Innovations**
NSK’s Bearing Units for Stretcher Units™ incorporate high-performance **sealed ball bearings** with optimized internal geometries to minimize friction while supporting high radial and axial loads. Key technical advancements include:

– **Precision-Ground Raceways:** Ensures smooth motion with minimal vibration, critical for applications requiring consistent tension control (e.g., fabric stretching in textile production).
– **Integrated Sealing Solutions:** Multi-lip seals protect against contaminants like dust, moisture, and particulate ingress, extending service life in harsh environments.
– **Corrosion-Resistant Materials:** Options include stainless steel or special coatings for applications exposed to chemicals or humidity (e.g., food processing, automotive paint lines).
– **Pre-Lubrication & Maintenance-Free Designs:** Reduced downtime with long-lasting grease formulations that withstand high speeds and temperatures.

### **Performance Advantages**
By leveraging NSK’s expertise in tribology and material science, these bearing units offer:

– **Higher Load Capacity:** Robust construction supports heavy dynamic loads without deformation, ideal for automotive conveyor systems or metal-forming machinery.
– **Energy Efficiency:** Low torque design reduces power consumption in continuous-operation machines.
– **Extended Service Life:** Advanced heat treatment and surface finishing techniques reduce wear, even under cyclic stress.
– **Easy Installation:** Standardized housing designs simplify integration into existing stretcher mechanisms.

### **Typical Applications**
NSK’s Bearing Units are trusted in industries where precision motion control is non-negotiable:

– **Textile Machinery:** Synchronized stretching of fabrics or fibers with uniform tension.
– **Automotive Systems:** Conveyor belts, robotic welding arms, and assembly line positioning units.
– **Packaging & Printing:** Precision web handling to prevent material slippage or tearing.
– **Industrial Automation:** Linear guides and actuators in CNC equipment or pick-and-place systems.

### **Conclusion**
NSK’s Bearing Units for Stretcher Units™ exemplify the company’s commitment to innovation in motion control. By combining precision engineering with rugged reliability, these units help manufacturers enhance productivity, reduce maintenance costs, and achieve consistent performance in the most demanding environments. Whether in high-speed automation or heavy-load industrial systems, NSK’s solutions ensure smooth, uninterrupted operation—keeping industries moving forward.

For tailored solutions, consult NSK’s technical team to match the ideal bearing unit to your application requirements.

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Designations Nominal Dimensions Basic Load Ratings Included products
d
mm
L
mm
H
mm
J,J2
mm
Cr
kN
C0r
kN
Bearing
UCM318-70D1
90
1250
170
700
143
107
UC318D1
UCM318-80D1
90
1350
170
800
143
107
UC318D1
UCM318-90D1
90
1450
170
900
143
107
UC318D1
UCM319-50D1
95
1180
185
500
153
119
UC319D1
UCM319-60D1
95
1280
185
600
153
119
UC319D1
UCM319-70D1
95
1380
185
700
153
119
UC319D1
UCM319-80D1
95
1480
185
800
153
119
UC319D1
UCM319-90D1
95
1580
185
900
153
119
UC319D1
UCM320-50D1
100
1220
200
500
173
141
UC320D1
UCM320-60D1
100
1320
200
600
173
141
UC320D1
UCM320-70D1
100
1420
200
700
173
141
UC320D1
UCM320-80D1
100
1520
200
800
173
141
UC320D1
UCM320-90D1
100
1620
200
900
173
141
UC320D1
UCM208-70D1
40
1070
97
700
29.1
17.8
UC208D1
UCM208-80D1
40
1170
97
800
29.1
17.8
UC208D1
UCM208-90D1
40
1270
97
900
29.1
17.8
UC208D1
UCL209-10D1
45
480
100
100
32.5
20.4
UC209D1
UCT209-30D1
45
520
233
300
32.5
20.4
UC209D1
UCL209-20D1
45
580
100
200
32.5
20.4
UC209D1
UCL209-30D1
45
680
100
300
32.5
20.4
UC209D1
UCL209-40D1
45
780
100
400
32.5
20.4
UC209D1
UCM209-50D1
45
880
102
500
32.5
20.4
UC209D1
UCM209-60D1
45
980
102
600
32.5
20.4
UC209D1
UCM209-70D1
45
1080
102
700
32.5
20.4
UC209D1