Dynamixel YM070-210-A051-RH

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-27

Identity
Brand
Product Number	902-0205-000
Category	Robotics
Performance
Torque	24.0V1,161.22 oz-inAverage
Speed	24.0V0.26 sec/60°Below Average
Running Current	24.0V11.900 ABelow Average
Stall Current	11.9–20.8 AAverage
Rated Output Power	210.0 W
Radial Load	1,240.0 N
Physical
Weight	34.57 ozBelow Average
Shape	Cylindrical
Dimensions	L 3.591 in W — H — ∅ 2.76 in
Case Material	Metal / Plastic
Drivetrain
Motor Type	Brushless
Gears	Metal
Gear Ratio	51:1
Shaft Size	14.00 mm
Rotation Mode	Multi-turn
Rotation/Support	Single Bearing
Backlash	0.050°
Control & Signal
Modulation	Digital
Direction	Bidirectional
Rotational Range	1850400°
Mechanical Limit	360°
Neutral Position	524288 µs
Angle Sensor	Magnetic Encoder
Control System	RS485-PID
Programmable	Yes
Resolution	26,738,700 pulse/rev
MCU	ARM CORTEX-M4
Operating Modes	Position, Velocity, Current
Signal Voltage	5V
Electrical & Environment
Operating Voltage	24–24 V
Power Source	External
Temperature	-5–55 °C
Water Rating	IP54
Idle Current	0.040 A
Connectivity
Connector	JST-Molex
Wire Length	600 mm
Baud Rate	9.6 Kbps–10.5 Mbps
Origin
Country of Origin	South Korea

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*Based on known specs.

Class Comparison

Torque	Average Stronger than 59% of 52 Custom servos at 24.0V
Speed	Below Average Faster than 12% of 61 Custom servos at 24.0V
Weight	Below Average Lighter than 22% of 28 Digital Custom servos
Running Current	Below Average Lower draw than 22% of 51 Custom servos at 24.0V
Stall Current	Average Lower draw than 54% of 27 Digital Custom servos

Performance Analysis

Shaft Power	8.42 W
Power Density	0.309 W/in³ More power-dense than 3% of 70 Dynamixel servos
Torque Density	1.1849 oz-in/g Stronger than 27% of 23 Dynamixel servos
Torque-to-Volume Ratio	42.57 oz-in/in³ Denser torque than 21% of 20 Dynamixel servos
Speed-to-Weight	0.00400 (1/sec·g) Faster than 30% of 24 Dynamixel servos
Speed-Torque Trade-off	296.10 Better balanced than 59% of 23 Dynamixel servos
Current-per-Torque Ratio	0.0179 A/oz-in More efficient than 41% of 23 Dynamixel servos
Idle-to-Running Current Ratio	0.003 5th-highest idle-to-running current ratio of 20 Dynamixel servos
No-Load vs Stall Current Spread	1.75 4th-highest no-load vs stall current spread of 21 Dynamixel servos
Voltage Range Width	0.0 V Wider voltage range than 26% of 28 Digital Custom servos
Backlash-to-Range Ratio	0.00000 1st-highest backlash-to-range ratio of 48 Dynamixel servos

Notes

The YM070-210-A051-RH is a high-performance smart actuator featuring a frameless BLDC motor and a cycloidal reducer. It provides precise position feedback with a multi-turn absolute encoder and supports RS-485 communication.