LM Model (Long Type)
This metal coupling utilizes the elasticity of a spring mechanism and incorporates a metal coil spring. This model offers high flexibility and can accommodate significant misalignments, such as eccentricity and angular misalignment. Among the LM models, the long type can accommodate angular misalignment of up to 14°.
[Specifications]
| Model | Rated Torque [N·m] |
Tolerance | Maximum Rotational Speed [min−1] |
Torsional Spring Constant [N·m/rad] |
Moment of Inertia [kg·m²] |
Mass [kg] | Price of pre-drilled product [JPY] | ||
|---|---|---|---|---|---|---|---|---|---|
| Eccentricity [mm] | Angular offset [°] | Axial length [mm] | |||||||
| LM-6 | 0.5 | 1.0 | 8 | ±1.0 | 6000 | 0.77 | 5.10 × 10−7 | 0.020 | |
| LM-6-1 | 0.5 | 3.0 | 14 | ±1.5 | 6000 | 0.40 | 7.65 × 10^(−7) | 0.030 | |
| LM-9 | 1.0 | 2.5 | 8 | ±1.0 | 6000 | 1.55 | 2.55 × 10−6 | 0.050 | |
| LM-9-1 | 1.0 | 4.0 | 14 | ±1.5 | 6000 | 0.80 | 3.06 × 10−6 | 0.060 | |
| LM-14 | 2.0 | 3.0 | 8 | ±1.0 | 6000 | 3.10 | 7.65 × 10^(−6) | 0.090 | |
| LM-14-1 | 2.0 | 4.5 | 14 | ±1.5 | 6000 | 1.60 | 9.44 × 10^(−6) | 0.110 | |
- The maximum rotational speed does not take dynamic balance into account.
- The moment of inertia and mass are based on the maximum bore diameter.
[Dimensions]
Unit [mm]
| Model | d1・d2 | D | L | L1 | L2 | F | M | ||
|---|---|---|---|---|---|---|---|---|---|
| Pilot hole | Minimum | Max | |||||||
| LM-6 | 4 | 5 | 6 | 14 | 35 | 12 | 6.5 | 3.5 | M4 |
| LM-6-1 | 50 | ||||||||
| LM-9 | 5 | 6 | 9 | 20 | 40 | 14 | 7.5 | 4 | |
| LM-9-1 | 60 | ||||||||
| LM-14 | 8 | 9 | 14 | 26 | 50 | 17 | 10 | 5 | M5 |
| LM-14-1 | 70 | ||||||||
- The pilot hole will be a drill hole.
- There is no correlation between the left and right tap positions, as shown in the figure.
[Standard Hole Diameter]
| Model | Standard hole diameters d1 and d2 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 6 | 6.35 | 7 | 8 | 9 | 9.5 | 9.525 | 10 | 11 | 12 | 12.7 | 14 | |
| LM-6(-1) | ● | ● | |||||||||||
| LM-9(-1) | ● | ● | ● | ● | |||||||||
| LM-14(-1) | ● | ● | ● | ● | ● | ● | ● | ||||||
- Standard drilled parts do not have keyways. Depending on the specifications, this may be possible, so please contact us for more information.
