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STR 040V Frame
This versatile solution features programmable output motions with low-wear rolling contact. Larger inertia load transmission is achieved with internal cam ratio reduction while maintaining powerful torque with less motor horsepower. The STR’s unique no-backlash preloaded mechanism improves the overall dynamics to force output motions to a new level of rigidity and accurate servo controller performance. The compact design reduces footprint while offering high speed rotation with large bending moment capacity.
Technical Data
STR 040V Frame 1 Stage Specifications with VRSF-B
| Ratio | Unit | Note | 15 |
| Nominal Torque | [Nm] | *1 | 27 |
| Acceleration Torque | [Nm] | – | 58 |
| No Load Torque | [Nm] | *1 | 0.5 |
| Nominal Input Speed | [rpm] | *2 | 900 |
| Maximum Input Speed | [rpm] | *2 | 3000 |
| Reflected Inertia (Single) | [kg-m2x10-4] | *3 | 0.292 |
| Reflected Inertia (≤ Ø8) | [kg-m2x10-4] | *3 | – |
| Reflected Inertia (≤ Ø14) | [kg-m2x10-4] | *3 | – |
| Backlash | [arc-min] | – | 0 |
| Angular Transmission Accuracy | [arc-min] | – | ≤ 15 |
| Angular Repeatability Accuracy | [arc-min] | – | ±0.2 |
| Surface Runout | [µm (max)] | – | 10 |
| Weight | [kg] | – | 2.5 |
| Maximum Axial Load | [N] | – | 999 |
| Maximum Radial Load | [N] | – | 669 |
| Maximum Tilting Moment Load | [Nm] | – | 33 |
| Efficiency | [%] | – | 80 |
| Protection Class | – | *4 | IP54 (IP65) |
STR 040V Frame 2 Stage Specifications with VRSF-B
| Ratio | Unit | Note | 45 | 75 | 135 |
| Nominal Torque | [Nm] | *1 | 27 | 27 | 27 |
| Acceleration Torque | [Nm] | – | 58 | 58 | 58 |
| No Load Torque | [Nm] | *1 | 0.2 | 0.2 | 0.2 |
| Nominal Input Speed | [rpm] | *2 | 2700 | 3000 | 3000 |
| Maximum Input Speed | [rpm] | *2 | 5000 | 5000 | 5000 |
| Reflected Inertia (Single) | [kg-m2x10-4] | *3 | – | – | – |
| Reflected Inertia (≤ Ø8) | [kg-m2x10-4] | *3 | 0.082 | 0.06 | 0.053 |
| Reflected Inertia (≤ Ø14) | [kg-m2x10-4] | *3 | 0.151 | 0.131 | 0.121 |
| Backlash | [arc-min] | – | 0 | 0 | 0 |
| Angular Transmission Accuracy | [arc-min] | – | ≤ 15 | ≤ 15 | ≤ 15 |
| Angular Repeatability Accuracy | [arc-min] | – | ±0.2 | ±0.2 | ±0.2 |
| Surface Runout | [µm (max)] | – | 10 | 10 | 10 |
| Weight | [kg] | – | 3.2 | 3.2 | 3.2 |
| Maximum Axial Load | [N] | – | 999 | 999 | 999 |
| Maximum Radial Load | [N] | – | 669 | 669 | 669 |
| Maximum Tilting Moment Load | [Nm] | – | 33 | 33 | 33 |
| Efficiency | [%] | – | 76 | 76 | 76 |
| Protection Class | – | *4 | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) |
STR 040V 3 Stage Specifications with VRSF-B
| Ratio | Unit | Note | 225 | 300 | 375 | 525 |
| Nominal Torque | [Nm] | *1 | 27 | 27 | 27 | 27 |
| Acceleration Torque | [Nm] | – | 58 | 58 | 58 | 58 |
| No Load Torque | [Nm] | *1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Nominal Input Speed | [rpm] | *2 | 3000 | 3000 | 3000 | 3000 |
| Maximum Input Speed | [rpm] | *2 | 5000 | 5000 | 5000 | 5000 |
| Reflected Inertia (Single) | [kg-m2x10-4] | *3 | – | – | – | – |
| Reflected Inertia (≤ Ø8) | [kg-m2x10-4] | *3 | 0.058 | 0.057 | 0.057 | 0.053 |
| Reflected Inertia (≤ Ø14) | [kg-m2x10-4] | *3 | 0.131 | 0.131 | 0.131 | 0.121 |
| Backlash | [arc-min] | – | 0 | 0 | 0 | 0 |
| Angular Transmission Accuracy | [arc-min] | – | ≤ 15 | ≤ 15 | ≤ 15 | ≤ 15 |
| Angular Repeatability Accuracy | [arc-min] | – | ±0.2 | ±0.2 | ±0.2 | ±0.2 |
| Surface Runout | [µm (max)] | – | 10 | 10 | 10 | 10 |
| Weight | [kg] | – | 3.4 | 3.4 | 3.4 | 3.4 |
| Maximum Axial Load | [N] | – | 999 | 999 | 999 | 999 |
| Maximum Radial Load | [N] | – | 669 | 669 | 669 | 669 |
| Maximum Tilting Moment Load | [Nm] | – | 33 | 33 | 33 | 33 |
| Efficiency | [%] | – | 72 | 72 | 72 | 72 |
| Protection Class | – | *4 | IP54 (IP65) | IP54 (IP65) | IP54 (IP65) |
- At nominal input speed
- Speeds are at the actuator input. Limits when used with additional gearbox are higher
- At input shaft
- IP65 (wash-down) is available as an option. Contact Nidec Drive Technology for more details and our food grade options
