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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | RSBL85-12 |
| Category | Robotics |
| Performance | |
| Torque |
12.0V1,180.43 oz-in85.00 kg-cm8.3 N-m |
| Speed |
12.0V0.17 sec/60°359.3 deg/s59.9 RPM |
| Stall Current | ≤7.9 A≤7900 mAAverage |
| Physical | |
| Weight | 7.58 oz215.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 2.441 in W 1.339 in H 1.85 in L 62.0 mm W 34.0 mm H 47.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Ratio | 254:1 |
| Rotation Mode | Multi-turn |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 360° |
| Mechanical Limit | No Limit |
| Angle Sensor | Magnetic Encoder |
| Control System | RS-485 |
| Programmable | Yes |
| Resolution | 4,096 pulse/rev |
| Operating Modes | Position, Velocity, Step |
| Electrical & Environment | |
| Operating Voltage | 9–12 V |
| Idle Current | 0.540 A540 mA |
| Connectivity | |
| Baud Rate | 38.4 Kbps–1 Mbps |
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 | Average Lighter than 43% of 174 Digital Giant servos |
| Stall Current | Average Lower draw than 51% of 102 Digital Giant servos |
Performance Analysis
| Torque Density | 5.4904 oz-in/g |
| Torque-to-Volume Ratio | 195.22 oz-in/in³ |
| Speed-to-Weight | 0.02785 (1/sec·g) |
| Speed-Torque Trade-off | 197.12 |
| Current-per-Torque Ratio | 0.0067 A/oz-in |
| Voltage Range Width | 3.0 V Wider voltage range than 43% of 160 Digital Giant servos |
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