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Technical Specifications
Last Updated: 2026-10-10
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 | 2.8–4 A2800–4000 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 85% of 1043 Digital Standard servos at 6.0V |
| Speed | Average Faster than 44% of 1040 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 16% of 1902 Digital Standard servos |
| Running Current | Below Average Lower draw than 32% of 173 Digital Standard servos at 6.0V |
| Stall Current | Average Lower draw than 36% of 539 Digital Standard servos |
Performance Analysis
| Torque Density | 5.4104 oz-in/g Stronger than 82% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 223.92 oz-in/in³ Denser torque than 87% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.09276 (1/sec·g) Faster than 28% of 1032 Digital Standard servos |
| Speed-Torque Trade-off | 58.32 Better balanced than 83% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0096 A/oz-in More efficient than 80% of 315 Digital Standard servos |
| No-Load vs Stall Current Spread | 12.50 Narrower current spread than 66% of 132 Digital Standard servos |
| Torque Gain per Volt | 20.83%/V More voltage-responsive (torque) than 84% of 850 Digital Standard servos |
| Speed Gain per Volt | 16.66%/V More voltage-responsive (speed) than 55% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 43% of 1539 Digital Standard servos |
Notes
Also comes in a TTL, RS-485 & CAN control system.
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