LMF-ML SERIES

The THK LMF/ML SERIES flanged-type linear bushings represent a specialized category within the THK Guide Ball Bushing lineup, engineered for applications demanding high rigidity, precise alignment, and robust load support. These circular flanged bushings are designed as single-unit, self-aligning components that facilitate smooth linear motion along a shaft, serving as a compact and highly efficient alternative to traditional slide mechanisms. The defining feature of the LMF/ML SERIES is its integrated flange, which provides a stable and secure mounting surface, simplifying installation and enhancing the overall structural integrity of the assembly.

Technically, these bushings incorporate a precision-engineered outer sleeve with a mounting flange and an inner ring that houses a recirculating ball bearing system. The balls circulate smoothly within precisely machined raceways, minimizing friction and enabling high-speed, low-resistance linear travel. A key performance advantage lies in their self-aligning capability, which automatically compensates for minor mounting inaccuracies or shaft deflections, ensuring consistent performance and prolonged service life even under misalignment conditions. This is further enhanced by the high-carbon chromium bearing steel construction, which provides exceptional hardness, wear resistance, and durability. The inclusion of high-quality seals effectively prevents the ingress of contaminants like dust and debris while retaining essential lubrication, making them suitable for operation in harsh industrial environments. Their compact, flanged design allows for direct mounting to machine frames, reducing the need for additional components and saving valuable space within the assembly.

The performance benefits of the LMF/ML SERIES translate directly into operational advantages across various demanding sectors. In industrial automation and machinery, these bushings are integral to the smooth and precise movement of components in automated assembly lines, pick-and-place systems, material handling equipment, and precision slides for measuring instruments. Their rigidity and load capacity make them ideal for applications requiring high moment load resistance. Within the automotive manufacturing sector, they are commonly employed in precision jigs and fixtures, robotic welding arms, and testing equipment where reliability and repeatability are paramount. In the realm of precision equipment, such as semiconductor manufacturing apparatus, medical devices, and optical positioning systems, the low friction, high accuracy, and smooth motion characteristics of the LMF/ML bushings are critical for achieving micron-level precision and ensuring the flawless operation of sensitive mechanisms. Ultimately, the THK LMF/ML SERIES flanged linear bushings offer a reliable, space-saving, and high-performance solution for engineers seeking to optimize linear motion in a wide array of mechanical systems.

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Model No. Main dimensions Basic load rating
Inscribed bore diameter Outer diameter Length Flange diameter Dynamic
rating
C
Static
rating
C0

dr
Tolerance
D
Tolerance L Tolerance D1 Tolerance
mm mm mm mm mm mm mm mm N N
LMF 12ML Linear Bushing
12
0–0.010
21
0–0.016
57
0–0.3
42
0–0.2
657
1200
LMF 13ML Linear Bushing
13
0–0.010
23
0–0.016
61
0–0.3
43
0–0.2
814
1570
LMF 16ML Linear Bushing
16
0–0.010
28
0–0.016
70
0–0.3
48
0–0.2
1230
2350
LMF 20ML Linear Bushing
20
0–0.012
32
0–0.019
80
0–0.3
54
0–0.2
1400
2750
LMF 25ML Linear Bushing
25
0–0.012
40
0–0.019
112
0–0.4
62
0–0.2
1560
3140
LMF 30ML Linear Bushing
30
0–0.012
45
0–0.019
123
0–0.4
74
0–0.2
2490
5490
LMF 6ML Linear Bushing
6
0–0.010
12
0–0.013
35
0–0.3
28
0–0.2
324
529
LMF 8ML Linear Bushing
8
0–0.010
15
0–0.013
45
0–0.3
32
0–0.2
431
784
LMF 10ML Linear Bushing
10
0–0.010
19
0–0.016
55
0–0.3
39
0–0.2
588
1100