Dynamixel YM070-210-A051-RH

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-10

Identity
Brand
Product Number	902-0205-000
Category	Robotics
Performance
Torque	24.0V166.21 oz-inBottom 10%
Speed	24.0V0.09 sec/60°Below Average
Running Current	24.0V11.900 ABelow Average
Stall Current	11900–20800 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
Drivetrain
Motor Type	Brushless
Gears	Metal
Gear Ratio	51:1
Shaft Size	14.0 mm
Rotation Mode	Multi-turn
Rotation/Support	Single Bearing
Backlash	3.000°
Control & Signal
Modulation	Digital
Direction	Bidirectional
Rotational Range	360°
Mechanical Limit	360°
Neutral Position	524288 µs
Angle Sensor	Contactless Absolute Encoder
Control System	RS485-FOC
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	KOREA

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Compatible Hardware

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*Based on known specs.

Class Comparison

Torque	Bottom 10% Stronger than 8% of 54 Custom servos at 24.0V
Speed	Below Average Faster than 29% of 64 Custom servos at 24.0V
Weight	Below Average Lighter than 20% of 31 Digital Custom servos
Running Current	Below Average Lower draw than 20% of 50 Custom servos at 24.0V
Stall Current	Average Lower draw than 38% of 27 Digital Custom servos

Performance Analysis

Shaft Power	3.41 W
Power Density	0.125 W/in³ More power-dense than 0% of 63 Dynamixel servos
Torque Density	0.1696 oz-in/g Stronger than 10% of 22 Dynamixel servos
Torque-to-Volume Ratio	6.09 oz-in/in³ Denser torque than 11% of 20 Dynamixel servos
Speed-to-Weight	0.01134 (1/sec·g) Faster than 50% of 23 Dynamixel servos
Speed-Torque Trade-off	14.96 Better balanced than 29% of 22 Dynamixel servos
Current-per-Torque Ratio	125.1430 A/oz-in More efficient than 14% of 22 Dynamixel servos
Idle-to-Running Current Ratio	0.003 2nd-highest idle-to-running current ratio of 22 Dynamixel servos
No-Load vs Stall Current Spread	1,747.90 Narrower current spread than 59% of 23 Dynamixel servos
Voltage Range Width	0.0 V Wider voltage range than 20% of 31 Digital Custom servos
Backlash-to-Range Ratio	0.00833 Tighter backlash than 75% of 49 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.