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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BLS2808-12 |
| Category | Hobby |
| Performance | |
| Torque |
13.0V
416.62 oz-in
30.00 kg-cm
2.9 N-m
12.0V
388.84 oz-in
28.00 kg-cm
2.7 N-m
9.0V
347.18 oz-in
25.00 kg-cm
2.5 N-m
Above Average
|
| Speed |
13.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
12.0V
0.08 sec/60°
750.0 deg/s
125.0 RPM
9.0V
0.09 sec/60°
666.7 deg/s
111.1 RPM
Above Average
|
| Physical | |
| Weight | 2.75 oz78.0 gBelow Average |
| 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 |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Cycle | 560 ms |
| Neutral Position | 760 µs |
| Refresh Rate | 560 Hz |
| Electrical & Environment | |
| Operating Voltage | 9–13 V |
| 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
| Torque | Above Average Stronger than 75% of 1043 Digital Standard servos at 9.0V |
| Speed | Above Average Faster than 80% of 1041 Digital Standard servos at 9.0V |
| Weight | Below Average Lighter than 14% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 7.13–11.00 W |
| Power Density | 5.864 W/in³ More power-dense than 84% of 1759 Digital Standard servos |
| Torque Density | 4.4510 oz-in/g Stronger than 68% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 185.00 oz-in/in³ Denser torque than 76% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.14245 (1/sec·g) Faster than 67% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 31.24 Better balanced than 54% of 1031 Digital Standard servos |
| Torque Gain per Volt | 5.00%/V More voltage-responsive (torque) than 3% of 850 Digital Standard servos |
| Speed Gain per Volt | 7.14%/V More voltage-responsive (speed) than 6% of 871 Digital Standard servos |
| Voltage Range Width | 4.0 V Wider voltage range than 90% of 1539 Digital Standard servos |
Notes
Super High Voltage (9-13V) ready. Optimized for Heli. Servo Grommet suggested for Nitro Heli.
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