ZG Model
This metal coupling utilizes the elasticity of a spring mechanism and incorporates a metal coil spring. This model offers high flexibility and is capable of accommodating significant misalignments, such as eccentricity and angular misalignment. The ZG model features relatively low operating torque and excellent deflection characteristics. The coil spring is made of spring steel.
[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 [mm] | |||||||
| ZG-6 | 0.15 | 0.5 | 5 | ±0.5 | 3000 | 0.17 | 1.95 × 10−7 | 0.020 | |
| ZG-8 | 0.5 | 1 | 8 | ±1.0 | 0.48 | 1.02 × 10^(−6) | 0.070 | ||
| ZG-14 | 1.5 | 1.2 | 1.7 | 1.15 × 10^(−5) | 0.130 | ||||
- 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 | F | M | CAD File No. | ||
|---|---|---|---|---|---|---|---|---|---|
| Pilot hole | Min. | Max | |||||||
| ZG-6 | 2 | 3 | 6 | 12 | 25 | 9 | 2.4 | M3 | ZGLM9 |
| ZG-8 | 3 | 4 | 8 | 16 | 35 | 12.5 | 3.5 | M4 | ZGLM1 |
| ZG-14 | 6 | 7 | 14 | 26 | 50 | 17 | 4.5 | M5 | ZGLM2 |
- The pilot hole will be a drill hole.
- The tap positions on the left and right may be slightly off.
[Standard Hole Diameter]
| Model | Standard hole diameters d1 and d2 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.5 | 9.525 | 10 | 11 | 12 | 12.7 | 14 | |
| ZG-6 | ● | ● | ● | ● | |||||||||||
| ZG-8 | ● | ● | ● | ||||||||||||
| ZG-14 | ● | ● | ● | ● | ● | ● | ● | ● | |||||||
- Standard drilled parts do not have keyways. Depending on the specifications, this may be possible, so please contact us for more information.
