THK’s LM Guide Caged Ball LM Guide Global Standard size Model SHS SHS LR SERIES represents a significant advancement in linear motion technology, engineered to deliver exceptional precision, durability, and reliability in demanding industrial environments. This series incorporates a unique caged ball design, where precision balls are retained and separated by a polymer cage, effectively minimizing friction, reducing heat generation, and eliminating metal-to-metal contact between the balls. This design not only enhances operational smoothness but also substantially extends the service life of the guide by preventing ball-to-ball abrasion and reducing the need for frequent lubrication.
Key technical features of the SHS SHS LR SERIES include its global standard dimensions, ensuring full interchangeability and easy integration with existing machinery and competing products that adhere to the same specifications. The series is constructed from high-carbon chromium bearing steel, heat-treated to achieve an optimal balance of hardness and toughness, providing superior load capacity and resistance to wear and deformation. The LM guides are available in various accuracy grades, from high-precision to super-precision, catering to diverse application requirements. Additionally, the incorporation of seals and scrapers at both ends effectively shields the internal components from contaminants such as dust, chips, and moisture, maintaining performance integrity even in harsh operating conditions.
Performance advantages are evident in the series’ ability to handle high loads—both radial and moment—with remarkable stability and minimal deformation. The caged ball mechanism ensures consistent motion characteristics, reducing vibration and noise levels, which is critical for high-speed applications. This results in improved positional accuracy, repeatability, and overall efficiency of automated systems. The reduced friction coefficient translates into lower driving force requirements, enabling energy savings and allowing for the use of smaller, more cost-effective drive components. Maintenance intervals are extended due to the optimized lubrication retention and contaminant exclusion, lowering total cost of ownership over the system’s lifecycle.
Typical applications span a wide range of industries, leveraging the robustness and precision of the SHS SHS LR SERIES. In industrial machinery, these guides are integral to CNC machining centers, where they facilitate precise tool positioning and high-speed axis movements, directly impacting machining accuracy and surface finish quality. Within automotive manufacturing systems, they are employed in robotic welding arms, assembly line transporters, and automated inspection equipment, ensuring reliable performance under continuous, high-cycle operations. In the realm of precision equipment, the series finds use in semiconductor manufacturing apparatus, medical device automation, and optical alignment systems, where micron-level accuracy and contamination control are paramount. By offering a reliable, high-performance solution, the THK SHS SHS LR SERIES enables manufacturers to enhance productivity, improve product quality, and achieve greater operational efficiency across various sectors.
| Model No. | Outer dimensions | Basic load rating | |||
| Radial | |||||
| Height M |
Width W |
Length L |
Dynamic rating C |
Static rating C0 |
|
| mm | mm | mm | kN | kN | |
40 |
48 |
109 |
36.8 |
64.7 |
|
40 |
48 |
109 |
36.8 |
64.7 |
|
45 |
60 |
131 |
54.2 |
88.8 |
|
55 |
70 |
152 |
72.9 |
127 |
|
70 |
86 |
174 |
100 |
166 |
|
80 |
100 |
213 |
161 |
259 |
|