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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | S8977 |
| Category | Hobby |
| Performance | |
| Torque |
12.6V638.80 oz-in46.00 kg-cm4.5 N-mTop 10% |
| Speed |
12.6V0.09 sec/60°666.7 deg/s111.1 RPMAbove Average |
| Physical | |
| Weight | 2.68 oz76.0 gBelow Average |
| Dimensions |
L 1.575 in W 0.827 in H 1.772 in L 40.0 mm W 21.0 mm H 45.0 mm |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 12.6–12.6 V |
| 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 | Top 10% Stronger than 97% of 1060 Digital Standard servos at 12.6V |
| Speed | Above Average Faster than 84% of 1045 Digital Standard servos at 12.6V |
| Weight | Below Average Lighter than 20% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 13.12 W |
| Power Density | 5.686 W/in³ More power-dense than 84% of 1768 Digital Standard servos |
| Torque Density | 8.4053 oz-in/g Stronger than 98% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 276.77 oz-in/in³ Denser torque than 94% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.14620 (1/sec·g) Faster than 71% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 57.49 Better balanced than 83% of 1034 Digital Standard servos |
| Voltage Range Width | 0.0 V Wider voltage range than 0% of 1560 Digital Standard servos |
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