Sakai
Sakai LAS-C Series Precision Spring Coupling
Manufacturer: Sakai Manufacturing Co., Ltd.
Model: LAS-C Series
Features
- The synergistic effect of the high rigidity, double bolt clamp specification and non-backlash structure makes it suitable for improving control response and precision.
Specifications
(Dimensions: mm)
| Model number | d | A | P | L | S | J | G | M |
|---|---|---|---|---|---|---|---|---|
| LAS-12C | See LAS-12C dimensional drawing | |||||||
| LAS-15C | 3~6 | 15 | 5.5 | 16.2 | 8.1 | 7.7 | 0.8 | M2 |
| LAS-20C | 4~8 | 20 | 6.5 | 18.8 | 9.4 | 8.9 | 1 | M2.5 |
| LAS-25C | 6~10 | 25 | 8.5 | 23.4 | 11.7 | 11 | 1.4 | M3 |
| LAS-30C | 6~14 | 30 | 11.5 | 24.4 | 12.2 | 11.5 | 1.4 | M3 |
| LAS-35C | 8~16 | 35 | 13 | 27 | 13.5 | 12.5 | 2 | M3 |
| LAS-40C | 10~20 | 40 | 16 | 31.2 | 15.6 | 14.6 | 2 | M3 |
| LAS-48C | 10~24 | 48 | 18 | 38.6 | 19.3 | 17 | 4.6 | M4 |
| LAS-58C | 12~25 | 58 | 21 | 44.8 | 22.4 | 20 | 4.8 | M5 |
| Model number | Allowable torque N・m | Allowable eccentricity mm | Allowable deviation angle ° | Allowable axial displacement mm | Maximum rotation speed min-1 | Torsional stiffness | Axial spring constant N/mm | Moment of inertia kg・m2 | Mass g | |
|---|---|---|---|---|---|---|---|---|---|---|
| Overall N・m/rad | Leaf spring only N・m/rad | |||||||||
| LAS-12C | 0.25 | 0.01 | 0.5 | ±0.04 | 10000 | 264 | 400 | 20 | 0.06×10-6 | 3 |
| LAS-15C | 0.6 | 0.01 | 0.5 | ±0.05 | 10000 | 392 | 1400 | 176 | 0.22×10-6 | 7 |
| LAS-20C | 1.3 | 0.02 | 1.0 | ±0.13 | 10000 | 980 | 2400 | 78 | 0.79×10-6 | 14 |
| LAS-25C | 2.8 | 0.02 | 1.0 | ±0.15 | 10000 | 1764 | 3700 | 50 | 2.31×10-6 | 27 |
| LAS-30C | 3.6 | 0.02 | 1.0 | ±0.20 | 10000 | 2940 | 4300 | 30 | 4.89×10-6 | 37 |
| LAS-35C | 5.0 | 0.02 | 1.0 | ±0.23 | 10000 | 5880 | 10800 | 40 | 1.01×10-5 | 55 |
| LAS-40C | 6.0 | 0.02 | 1.0 | ±0.27 | 10000 | 7840 | 12600 | 40 | 1.94×10-5 | 79 |
| LAS-48C | 12 | 0.02 | 1.0 | ±0.32 | 10000 | 12000 | 25600 | 58 | 0.47×10-4 | 136 |
| LAS-58C | 25 | 0.02 | 1.0 | ±0.39 | 10000 | 24000 | 51400 | 58 | 1.23×10-4 | 254 |
Standard Shaft Hole Diameter
(Unit: mm)
| Model number | d | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3 | 4 | 4.5 | 5 | 6 | 6.35 | 7 | 8 | 9 | 9.525 | 10 | 11 | 12 | 14 | 15 | 16 | 18 | 19 | 20 | 22 | 24 | 25 | |
| LAS-12C | ● | ● | – | ● | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| LAS-15C | ● | ● | ● | ● | ○ | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| LAS-20C | – | ● | ● | ● | ● | ● | 🟤 | ○ | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| LAS-25C | – | – | – | – | ● | ● | ● | ● | ○ | ○ | ○ | – | – | – | – | – | – | – | – | – | – | – |
| LAS-30C | – | – | – | – | ● | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | – | – | – | – | – | – | – | – |
| LAS-35C | – | – | – | – | – | – | – | ● | – | ● | ● | ● | ● | ○ | ○ | ○ | – | – | – | – | – | – |
| LAS-40C | – | – | – | – | – | – | – | – | – | – | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | – | – | – |
| LAS-48C | – | – | – | – | – | – | – | – | – | – | ● | ● | ● | ● | ● | ● | ○ | ○ | ○ | ○ | ○ | – |
| LAS-58C | – | – | – | – | – | – | – | – | – | – | – | – | ● | ● | ● | ● | ● | ● | ● | ○ | ○ | ○ |
- The LAS-58C is a semi-standard product (delivery time confirmed).
- The allowable radial direction displacement indicates the case the eccentricity and tilt angle are zero.
- The moment of inertia and mass are shown for the maximum shaft hole diameter.
- Please insert the shaft up to the marking line correctly. In the case of through holes, make sure that the inserted shaft does not protrude from the other side.
- 🟤 symbol indicates a semi-standard product (delivery time confirmed).
- The ● symbol indicates the shaft hole diameter that can accommodate a key. (The ◯ symbol indicates a non-through hole diameter.)
- The recommended shaft tolerance is h6.
- The maximum rotational speed does not consider dynamic balance.
