Sakai
Sakai LAD-20LS Precision Spring Coupling
Manufacturer: Sakai Manufacturing Co., Ltd.
Model: LAD-20LS
Feature
- By enlarging the bearing through-hole of the spacer, the distance between the two shafts has minimized. It is ideal for miniaturization and downsizing of equipment.
Performance
| Model | Allowable Torque (N·m) | Allowable Eccentricity (mm) | Allowable Angular Misalignment (°) | Allowable Axial Displacement (mm) | Max Rotational Speed (min⁻¹) | Torsional Stiffness | Axial Spring Constant (N/mm) | Moment of Inertia (kg·m²) | Mass (g) | |
|---|---|---|---|---|---|---|---|---|---|---|
| Overall (N·m/rad) | Plate Spring Only(N·m/rad) | |||||||||
| LAD-20LS | 1.3 | 0.14 | 1 | ±0.25 | 10000 | 490 | 1200 | 39 | 1.18×10⁻⁶ | 21 |
Clamping Section Transmission Capacity
| Model | Shaft Diameter (mm) | Transmission Capacity (N・m) | Model | Shaft Diameter (mm) | Transmission Capacity (N・m) | Model | Shaft Diameter (mm) | Transmission Capacity (N・m) |
|---|---|---|---|---|---|---|---|---|
| LAD-20LS | 4 | 2.4 | LAD-20LS | 6 | 3.6 | LAD-20LS | 7 | 4.3 |
| 5 | 3 | 6.35 | 3.9 | 8 | 4.9 |
- The allowable radial direction displacement represents the case. The eeccentricity and tilt angle are zero.
- Simultaneous eccentricity and tilt angle restrict the allowable tilt angle.
- The maximum shaft hole diameter shows the moment of inertia and mass.
- Please insert the shaft securely up to the bottom of the hub (9.6 mm).
- The recommended shaft tolerance is h6.
- The maximum rotational speed does not consider dynamic balance.
Material
| Part Number | Part Name | Material |
|---|---|---|
| ① | Hub | A2017 |
| ② | Spacer | A2017 |
| ③ | Plate Spring | SUS304 |
| ④ | Washer | SUS304 |
| ⑤ | Plate Spring Clamping Bolt | SCM435 |
| ⑥ | Clamping Bolt | SCM435 |
Shaft Installation
| Model | Shaft Diameter (mm) | Clamping Bolt | Tightening Torque (N・m) |
|---|---|---|---|
| LAD-20LS | 4~8 | M2.5 | 0.8 |
Press the shaft into the designated position by hand, tighten the four bolts alternately with a torque wrench in 2 to 3 steps to the specified tightening torque.
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