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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
181.00 oz-in
13.03 kg-cm
1.3 N-m
4.8V
139.00 oz-in
10.01 kg-cm
1.0 N-m
|
| Speed |
6.0V
0.20 sec/60°
300.0 deg/s
50.0 RPM
4.8V
0.25 sec/60°
240.0 deg/s
40.0 RPM
|
| Physical | |
| Weight | 6.63 oz188.0 gTop 10% |
| Dimensions |
L 2.14 in W 1.04 in H 2.03 in L 54.4 mm W 26.4 mm H 51.6 mm |
| Drivetrain | |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Analog |
| Connectivity | |
| Connector | JR (Universal) estimate |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Class Comparison
| Weight | Top 10% Lighter than 95% of 79 Custom servos |
Performance Analysis
| Shaft Power | 1.03–1.67 W |
| Power Density | 0.370 W/in³ More power-dense than 8% of 89 GWS servos |
| Torque Density | 0.7394 oz-in/g |
| Torque-to-Volume Ratio | 30.77 oz-in/in³ |
| Speed-to-Weight | 0.02128 (1/sec·g) |
| Speed-Torque Trade-off | 34.75 |
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Reviews (1)
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robots42
July 28, 2013Application(s): robot arm
Comments: The old S04 with the thin lead was excellent, then GWS upgraded the S04 with new electronics and a heavier lead. The upgraded version (tested on several servos) managed about 6.7Kgcm in one direction and 7.2Kgcm in the other and the 6.7Kgcm direction was very juddery on load. Maybe by now GWS has corrected their 'improvement'.