Request Quote
Request a quote from Nidec Drive Technology America Corporation.
STHVL7 Frame
The STH utilizes Nidec DTC modular design concept by integrating a VRL 070 planetary gear reducer at the input section. This allows the STH to achieve reduction ratios from 12:1 to 400:1. Motor mounting is easy with our vast selection of mounting plates. The 85mm hollow shaft provides clearance for wiring, tubing or ball screws to be passed through to effectors, fillers or any other active machinery. Contact us if you need assistance upgrading from legacy mechanical camming devices or pneumatics.
Technical Data
STHVL7 Frame 2 Stage Specifications
| Ratio *1 | Unit | Note | 12:1 | 16:1 | 20:1 | 28:1 | 40:1 |
| Nominal Torque | [Nm] | *2 | 65 | 85 | 85 | 85 | 68 |
| Maximum Acceleration Torque | [Nm] | – | 126 | 170 | 170 | 170 | 133 |
| Emergency Stop Torque | [Nm] | – | 240 | 240 | 240 | 240 | 240 |
| Nominal Input Speed | [rpm] | – | 3000 | 3000 | 3000 | 3000 | 3000 |
| Maximum Input Speed | [rpm] | – | 6000 | 6000 | 6000 | 6000 | 6000 |
| Maximum Axial Load | [N] | – | 4000 | 4000 | 4000 | 4000 | 4000 |
| Maximum Radial Load | [N] | – | 5000 | 5000 | 5000 | 5000 | 5000 |
| Maximum Tilting Moment Load | [Nm] | – | 200 | 200 | 200 | 200 | 200 |
| Maximum Surface Runout | [mm] | – | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 |
| Moment of Inertia (≤ Ø8) | [kgcm2] | *3 | 1.109 | 0.640 | 0.426 | 0.240 | 0.143 |
| Moment of Inertia (≤ Ø14) | [kgcm2] | *3 | 1.189 | 0.715 | 0.509 | 0.318 | 0.227 |
| Moment of Inertia (≤ Ø19) | [kgcm2] | *3 | 1.399 | 0.925 | 0.709 | 0.528 | 0.427 |
| Efficiency | [%] | – | 86 | 86 | 90 | 90 | 90 |
| Maximum Torsional Backlash | [Arc-min] | – | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 |
| Accuracy | [Arc-sec] | – | ±60 | ±60 | ±60 | ±60 | ±60 |
| Torsional Stiffness | [Nm/arc-min] | – | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 |
| Noise Level | [dB] | – | 72 | 72 | 65 | 65 | 65 |
| Maximum Ambient Temperature | [°C] | – | 0-40 | 0-40 | 0-40 | 0-40 | 0-40 |
| Permitted Housing Temperature | [°C] | – | 90 | 90 | 90 | 90 | 90 |
| Protection Class | – | *4 | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) |
| Weight | [kg] | – | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 |
STHVL7 3 Stage Specifications
| Ratio *1 | Unit | Note | 60:1 | 80:1 | 100:1 | 120:1 | 140:1 | 160:1 | 200:1 | 280:1 | 400:1 |
| Nominal Torque | [Nm] | *2 | 68 | 85 | 85 | 68 | 85 | 85 | 85 | 85 | 68 |
| Maximum Acceleration Torque | [Nm] | – | 133 | 170 | 170 | 133 | 170 | 170 | 170 | 170 | 133 |
| Emergency Stop Torque | [Nm] | – | 240 | 240 | 240 | 240 | 240 | 240 | 240 | 240 | 240 |
| Nominal Input Speed | [rpm] | – | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 | 3000 |
| Maximum Input Speed | [rpm] | – | 6000 | 6000 | 6000 | 6000 | 6000 | 6000 | 6000 | 6000 | 6000 |
| Maximum Axial Load | [N] | – | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 | 4000 |
| Maximum Radial Load | [N] | – | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 | 5000 |
| Maximum Tilting Moment Load | [Nm] | – | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 | 200 |
| Maximum Surface Runout | [mm] | – | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 | 0.070 |
| Moment of Inertia (≤ Ø8) | [kgcm2] | *3 | 0.094 | 0.076 | 0.067 | 0.059 | 0.060 | 0.054 | 0.052 | 0.051 | 0.050 |
| Moment of Inertia (≤ Ø14) | [kgcm2] | *3 | 0.179 | 0.152 | 0.144 | 0.140 | 0.137 | 0.135 | 0.133 | 0.132 | 0.131 |
| Moment of Inertia (≤ Ø19) | [kgcm2] | *3 | 0.389 | 0.372 | 0.350 | 0.350 | 0.357 | 0.345 | 0.343 | 0.342 | 0.341 |
| Efficiency | [%] | – | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 | 86 |
| Maximum Torsional Backlash | [Arc-min] | – | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 | ≤ 2 |
| Accuracy | [Arc-sec] | – | ±60 | ±60 | ±60 | ±60 | ±60 | ±60 | ±60 | ±60 | ±60 |
| Torsional Stiffness | [Nm/arc-min] | – | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 | 7.6 |
| Noise Level | [dB] | – | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| Maximum Ambient Temperature | [°C] | – | 0-40 | 0-40 | 0-40 | 0-40 | 0-40 | 0-40 | 0-40 | 0-40 | 0-40 |
| Permitted Housing Temperature | [°C] | – | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| Protection Class | – | *4 | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) |
| Weight | [kg] | – | 7.8 | 7.8 | 7.8 | 7.8 | 7.8 | 7.8 | 7.8 | 7.8 | 7.8 |
- Contact Nidec Drive Technology for special ratios
- At nominal input speed, service life is 20,000 hours
- Measured at input shaft
- IP65 (wash-down) is available as an option. Contact Nidec Drive Technology for more details and our food grade options
- L dimension varies depending on configuration
STHVL7 Frame 2 and 3 Stage Dimensions
