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Technical Specifications
Last Updated: 2026-10-08| Identity | |
| Brand |  |
| Product Number | SM-S4315R |
| Category | Robotics |
| Performance | |
| Torque |
6.0V
213.90 oz-in
15.40 kg-cm
1.5 N-m
4.8V
201.40 oz-in
14.50 kg-cm
1.4 N-m
|
| Speed |
6.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
4.8V
0.19 sec/60°
315.8 deg/s
52.6 RPM
|
| Physical | |
| Weight | 2.12 oz60.0 gBelow Average |
| Shape | Boxed |
| Dimensions |
L 2.20 in W 0.807 in H 1.815 in L 55.9 mm W 20.5 mm H 46.1 mm |
| Drivetrain | |
| Gears | Hybrid |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Continuous |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Analog |
| Direction | Bidirectional |
| Rotational Range | 360° |
| Mechanical Limit | No Limit |
| Neutral Position | 1500 µs |
| Dead Band | 4 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.5–6 V |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | China |
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 | Below Average Lighter than 13% of 447 Analog Standard servos |
Performance Analysis
| Shaft Power | 1.96–2.47 W |
| Power Density | 0.767 W/in³ More power-dense than 68% of 432 Analog Standard servos |
| Torque Density | 3.3567 oz-in/g |
| Torque-to-Volume Ratio | 62.50 oz-in/in³ |
| Speed-to-Weight | 0.08772 (1/sec·g) |
| Speed-Torque Trade-off | 38.26 |
| Voltage Range Width | 1.5 V Wider voltage range than 87% of 239 Analog Standard servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are few reviews for this servo on the web. This is a continuous-rotation version, and the owners who discuss it are mostly makers building small robots and carts. One forum user called it a good, strong servo for decent-size vehicles and liked the built-in trim pot for setting the stop point. Others found that the speed is not the same in the clockwise and counter-clockwise directions for the same command, that the stop point has to be tuned with the trim pot, and that a pair of units needed careful individual calibration to drive a cart straight. Experienced users described these as normal traits of continuous-rotation servos rather than defects.
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