THK’s LM LM GA OP SERIES Linear Bushing Cylindrical (Standard) represents a fundamental advancement in linear motion technology, designed to deliver exceptional precision, reliability, and durability in demanding industrial environments. This series features a cylindrical housing with a standardized design, incorporating high-grade steel construction and precision-engineered ball bearings that facilitate smooth, low-friction linear movement along shafts. Key technical features include an open-type structure, allowing for easy maintenance and lubrication, and a compact, lightweight profile that simplifies integration into space-constrained applications. The bushing’s optimized ball circulation system ensures consistent load distribution, minimizing wear and extending service life even under high-speed or heavy-load conditions.
Performance advantages of the LM LM GA OP SERIES are substantial, contributing to enhanced operational efficiency across various sectors. Its low coefficient of friction reduces energy consumption and heat generation, while the high rigidity and accuracy support precise positioning and repeatability in automated systems. The bushing’s corrosion-resistant materials and sealed design options provide robust performance in harsh environments, such as those with dust, moisture, or chemical exposure. Additionally, the open-type configuration allows for straightforward cleaning and re-lubrication, reducing downtime and maintenance costs. These attributes make it an ideal choice for applications requiring smooth, uninterrupted motion with minimal vibration and noise.
In industrial machinery, the LM LM GA OP SERIES is widely employed in CNC machine tools, robotic arms, and material handling equipment, where it ensures precise linear guidance for cutting, assembly, and transfer operations. Its ability to handle multidirectional loads makes it suitable for sliding tables and linear actuators that demand high positional accuracy. Within automotive systems, this bushing series finds use in production line automation, including welding robots, painting systems, and engine component testing fixtures, contributing to improved manufacturing speed and product quality. In precision equipment, it supports applications such as semiconductor manufacturing devices, medical imaging systems, and optical instruments, where its stability and low friction are critical for achieving micron-level tolerances and reliable performance over extended periods. By combining rugged construction with advanced engineering, THK’s LM LM GA OP SERIES delivers a versatile solution that enhances productivity and longevity in diverse mechanical systems.
| Model No. | Main dimensions | Basic load rating | |||||||
| Inscribed bore diameter | Outer diameter | Length | Dynamic rating C |
Static rating C0 |
|||||
dr |
Tolerance | D |
Tolerance Precision/High |
L | Tolerance | ||||
| Precision | High | ||||||||
| mm | mm | mm | mm | mm | mm | mm | N | N | |
100 |
0–0.010 |
0–0.020 |
150 |
0–0.025 |
175 |
0–0.4 |
14100 |
34800 |
|
120 |
0–0.010 |
0–0.020 |
180 |
0–0.025 |
200 |
0–0.4 |
16400 |
40000 |
|
12 |
0–0.006 |
0–0.009 |
21 |
0–0.013 |
30 |
0–0.2 |
412 |
598 |
|
13 |
0–0.006 |
0–0.009 |
23 |
0–0.013 |
32 |
0–0.2 |
510 |
775 |
|
16 |
0–0.006 |
0–0.009 |
28 |
0–0.013 |
37 |
0–0.2 |
775 |
1180 |
|
20 |
0–0.007 |
0–0.010 |
32 |
0–0.016 |
42 |
0–0.2 |
863 |
1370 |
|
25 |
0–0.007 |
0–0.010 |
40 |
0–0.016 |
59 |
0–0.3 |
980 |
1570 |
|
30 |
0–0.007 |
0–0.010 |
45 |
0–0.016 |
64 |
0–0.3 |
1570 |
2750 |
|
35 |
0–0.008 |
0–0.012 |
52 |
0–0.019 |
70 |
0–0.3 |
1670 |
3140 |
|
38 |
0–0.008 |
0–0.012 |
57 |
0–0.019 |
76 |
0–0.3 |
2160 |
4020 |
|
40 |
0–0.008 |
0–0.012 |
60 |
0–0.019 |
80 |
0–0.3 |
2160 |
4020 |
|
50 |
0–0.008 |
0–0.012 |
80 |
0–0.022 |
100 |
0–0.3 |
3820 |
7940 |
|
60 |
0–0.009 |
0–0.015 |
90 |
0–0.022 |
110 |
0–0.3 |
4710 |
10000 |
|
80 |
0–0.009 |
0–0.015 |
120 |
0–0.022 |
140 |
0–0.4 |
7350 |
16000 |
|