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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | B-12KG |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
7.4V
444.40 oz-in
32.00 kg-cm
3.1 N-m
7.4V
444.40 oz-in
32.00 kg-cm
3.1 N-m
6.0V
277.70 oz-in
20.00 kg-cm
2.0 N-m
Average
6.0V
277.70 oz-in
20.00 kg-cm
2.0 N-m
Average
|
| Speed |
7.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
6.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
Average
|
| Stall Current | ≤1.6 A≤1600 mATop 10% |
| Physical | |
| Weight | 2.50 oz71.0 gBelow Average |
| Dimensions |
L 1.598 in W 0.815 in H 1.654 in L 40.6 mm W 20.7 mm H 42.0 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Width | 800-2200 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Water Rating | Waterproof |
| Idle Current | 0.006 A6 mA |
| Connectivity | |
| Connector | JR (Universal) |
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 | Average Stronger than 62% of 1043 Digital Standard servos at 6.0V |
| Speed | Average Faster than 40% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 31% of 1902 Digital Standard servos |
| Stall Current | Top 10% Lower draw than 92% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.42–6.32 W |
| Power Density | 2.934 W/in³ More power-dense than 58% of 1759 Digital Standard servos |
| Torque Density | 3.9113 oz-in/g Stronger than 58% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 128.92 oz-in/in³ Denser torque than 56% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.09390 (1/sec·g) Faster than 29% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 41.66 Better balanced than 67% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0058 A/oz-in More efficient than 97% of 315 Digital Standard servos |
| Torque Gain per Volt | 42.88%/V More voltage-responsive (torque) than 99% of 850 Digital Standard servos |
| Speed Gain per Volt | 10.98%/V More voltage-responsive (speed) than 23% of 871 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 31% of 1539 Digital Standard servos |
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