---
title: "FLEXWAVE WPG series (strain-wave gearhead) by Nidec Drive Technology (Nidec-Shimpo): specs, torque and price"
description: "Harmonic / Precision actuator from Nidec Drive Technology (Nidec-Shimpo) (Japan). Peak torque n/a, rated n/a, weight n/a, torque density n/a, price quote only."
canonical: https://getactuators.com/actuators/nidec-flexwave-wpg
last-updated: 2026-09-26T20:29:50.000Z
---
# FLEXWAVE WPG series (strain-wave gearhead) by Nidec Drive Technology (Nidec-Shimpo)

> Harmonic / Precision actuator from Nidec Drive Technology (Nidec-Shimpo) (Japan). Peak torque n/a, rated n/a, weight n/a, torque density n/a, price quote only.

## Specifications

| Spec | Value |
| --- | --- |
| Category | Harmonic / Precision |
| Peak torque | n/a |
| Rated torque | n/a |
| Max speed | n/a |
| Gear ratio | 50:1-160:1 |
| Weight | n/a |
| Torque density | n/a |
| Price | quote only |
| Price per Nm | n/a |
| Backdrivable | no |
| Backlash | 0 arcmin |
| Voltage | n/a |
| Peak current | n/a |
| Communication | n/a |
| Control modes | n/a |
| Encoder | n/a |
| Integrated driver | no |
| Availability | in production |
| Data status | unverified |

## Use cases

- robot arm
- industrial robot joint
- machine tool
- semiconductor

## Notes

FLEXWAVE strain-wave (harmonic) gearing from Nidec Drive Technology (formerly Nidec-Shimpo). This is a zero-backlash gear unit / gearhead component (flexspline, circular spline, wave generator), not a motorized actuator, so motor/electrical/comms fields are null. FLEXWAVE WPG spans five frame sizes (about 35 to 80 mm) with ratios from 50:1 up to 160:1 and maximum torque up to about 346 N·m across the range. Marketed zero-backlash with high repeatability. backdrivable set to false: high-ratio (50:1 to 160:1) strain-wave gearing is effectively non-backdrivable, consistent with the other harmonic units in this file. Per-size rated torque and repeatability-in-arc-sec are not confirmed from a primary datasheet here, so left null. Quote-only pricing.

## Sources

- <https://www.nidec-dtc.com/product/wpg-gearhead/>
- <https://www.nidec-dtc.com/wp-content/uploads/2025/02/Flexwave_Catalog_A4-2025.pdf>
- <https://www.automate.org/products/nidec-shimpo-america/flexwave-zero-backlash-harmonic-gearing>
- <https://www.nidec-dtc.com/wp-content/uploads/2024/12/WPG-Brochure.pdf>

## Similar Harmonic / Precision actuators

- [LPA-20 (Low Profile Rotary Actuator) (Harmonic Drive LLC)](https://getactuators.com/actuators/harmonic-drive-lpa-20): 40.7 Nm/kg
- [FHA-14C-100 (FHA-C Mini) (Harmonic Drive LLC)](https://getactuators.com/actuators/harmonic-drive-fha-14c-100): 17 Nm/kg
- [SHA-CG series (SHA-CG Hollow Shaft Actuator) (Harmonic Drive LLC)](https://getactuators.com/actuators/harmonic-drive-sha-cg): n/a
- [CHA series (Hollow Shaft Servo Actuator) (Harmonic Drive (Harmonic Drive SE / LLC))](https://getactuators.com/actuators/harmonic-drive-cha-series): n/a
- [LHS series (Harmonic Drive strain-wave reducer) (Leaderdrive (Suzhou Leader Harmonic Drive))](https://getactuators.com/actuators/leaderdrive-lhs): n/a

## Machine-readable

- JSON: https://getactuators.com/api/v1/actuators/nidec-flexwave-wpg
- Catalog index for agents: https://getactuators.com/llms.txt