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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | OCS-451BL |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
624.90 oz-in
45.00 kg-cm
4.4 N-m
6.0V
416.60 oz-in
30.00 kg-cm
2.9 N-m
Above Average
|
| Speed |
8.4V
0.10 sec/60°
600.0 deg/s
100.0 RPM
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
Average
|
| Running Current |
6.0V0.320 A320 mABelow Average |
| Stall Current | 2.8–2.8 A2800–2800 mAAverage |
| Physical | |
| Weight | 2.72 oz77.0 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.50 in L 39.9 mm W 20.1 mm H 38.1 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Width | 800-2200 µs |
| Neutral Position | 1500 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Magnetic Encoder |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Water Rating | Waterproof |
| Certification | RoHS |
| Origin | |
| Country of Origin | China |
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 86% of 1059 Digital Standard servos at 6.0V |
| Speed | Average Faster than 46% of 1044 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 17% of 1879 Digital Standard servos |
| Running Current | Below Average Lower draw than 27% of 226 Digital Standard servos at 6.0V |
| Stall Current | Average Lower draw than 65% of 570 Digital Standard servos |
Performance Analysis
| Torque Density | 5.4104 oz-in/g Stronger than 83% of 1052 Digital Standard servos |
| Torque-to-Volume Ratio | 223.92 oz-in/in³ Denser torque than 88% of 1057 Digital Standard servos |
| Speed-to-Weight | 0.09276 (1/sec·g) Faster than 29% of 1037 Digital Standard servos |
| Speed-Torque Trade-off | 58.32 Better balanced than 84% of 1033 Digital Standard servos |
| Current-per-Torque Ratio | 0.0067 A/oz-in More efficient than 96% of 331 Digital Standard servos |
| No-Load vs Stall Current Spread | 8.75 Narrower current spread than 76% of 179 Digital Standard servos |
| Torque Gain per Volt | 20.83%/V More voltage-responsive (torque) than 83% of 872 Digital Standard servos |
| Speed Gain per Volt | 16.66%/V More voltage-responsive (speed) than 55% of 873 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 43% of 1559 Digital Standard servos |
Notes
Also comes in a TTL, RS-485 & CAN control system.
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