THK’s LM Guide Miniature Model SRS G, SRS GS, and SERIES represent a specialized class of linear motion components engineered for applications where space is at a premium but performance cannot be compromised. These full ball-type LM Guides are characterized by their compact cross-sectional dimensions and lightweight construction, making them an ideal solution for integrating precise linear movement into tightly constrained designs. The series utilizes a unique ball circulation system where the load-bearing balls recirculate through a compact, efficient circuit within the block, ensuring smooth, continuous motion. The standardized models, such as the SRS G, feature a stainless steel track rail with resin end seals, while the SRS GS variant offers a stainless steel track rail combined with stainless steel end seals, providing enhanced corrosion resistance for more demanding environments. The design incorporates a four-row, circular-arc groove configuration that provides high rigidity and excellent load capacity in all directions—radial, reverse-radial, and lateral.
The performance advantages of these miniature guides are significant. Their compact size directly translates to space-saving designs, allowing for more streamlined and efficient machinery layouts. Despite their small stature, they deliver high precision, low friction, and exceptional smoothness of movement, which are critical for applications requiring high positional accuracy and repeatability. The full ball contact design ensures high rigidity and stability, minimizing deflection under load and contributing to improved system longevity and reliability. The optimized ball circulation system reduces vibration and noise during operation, a crucial factor in noise-sensitive environments. Furthermore, the availability of corrosion-resistant models extends their usability to harsh conditions, including those with exposure to moisture, chemicals, or washdowns, without sacrificing performance.
Typical applications for the THK Miniature LM Guide SRS G/SRS GS/SERIES are found across industries where precision, compactness, and reliability are paramount. In industrial automation and machinery, they are extensively used in the linear axes of small CNC machines, precision assembly robots, pick-and-place units, and measuring instruments. Within the semiconductor and electronics manufacturing sectors, these guides are critical components in wafer handling equipment, chip mounter mechanisms, and precision inspection stages. The automotive industry leverages them in advanced manufacturing systems for tasks like small-part assembly, sensor positioning, and inside compact testing apparatus. They are also fundamental in the creation of high-precision medical and optical equipment, such as DNA analyzers, lens positioning systems in microscopes, and automated diagnostic devices, where their smooth, accurate, and reliable motion is essential for the integrity of the process.
| 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 | |
8 |
17 |
19 |
0.946 |
1.16 |
|
10 |
20 |
21.5 |
1.37 |
1.53 |
|
13 |
27 |
25 |
2.07 |
2.10 |
|
16 |
32 |
32 |
4.01 |
4.24 |
|