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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BMS-633 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
86.12 oz-in
6.20 kg-cm
0.6 N-m
4.8V
69.45 oz-in
5.00 kg-cm
0.5 N-m
|
| Speed |
6.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
4.8V
0.10 sec/60°
600.0 deg/s
100.0 RPM
|
| Physical | |
| Weight | 1.52 oz43.0 gTop 10% |
| Dimensions |
L 1.594 in W 0.787 in H 1.496 in L 40.5 mm W 20.0 mm H 38.0 mm |
| Drivetrain | |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Neutral Position | 1520 µs |
| Refresh Rate | 125 Hz |
| Electrical & Environment | |
| Operating Voltage | 4.5–6.5 V |
| Power Source | Ni-MH / Ni-CD |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | Taiwan |
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 93% of 1872 Digital Standard servos |
Performance Analysis
| Shaft Power | 1.28–1.99 W |
| Power Density | 1.061 W/in³ More power-dense than 19% of 1762 Digital Standard servos |
| Torque Density | 1.6151 oz-in/g |
| Torque-to-Volume Ratio | 37.01 oz-in/in³ |
| Speed-to-Weight | 0.23256 (1/sec·g) |
| Speed-Torque Trade-off | 6.95 |
| Voltage Range Width | 2.0 V Wider voltage range than 41% of 1552 Digital Standard servos |
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