Turnigy BMS-555MG

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*Based on known specs.

Technical Specifications

Last Updated: 2026-10-09

Identity
Brand
Product Number	BMS-555MG
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 65.27 oz-in 4.8V 58.33 oz-in Average
Speed	6.0V 0.13 sec/60° 4.8V 0.15 sec/60° Average
Physical
Weight	0.81 ozAverage
Dimensions	L 1.181 in W 0.394 in H 1.339 in
Drivetrain
Motor Type	3-pole
Gears	Metal
Gear Spline/Teeth	25 T
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Analog
Pulse Cycle	8 ms
Neutral Position	1520 µs
Electrical & Environment
Operating Voltage	4.8–6 V
Certification	CE
Connectivity
Connector	JR (Universal)

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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.

Compatible Hardware

Amazon eBay

*Based on known specs.

Class Comparison

Torque	Average Stronger than 46% of 69 Slim servos at 4.8V
Speed	Average Faster than 57% of 68 Slim servos at 4.8V
Weight	Average Lighter than 47% of 119 Slim servos

Performance Analysis

Shaft Power	0.72–0.93 W
Power Density	1.490 W/in³ More power-dense than 63% of 50 Turnigy servos
Torque Density	2.5361 oz-in/g Stronger than 52% of 30 Turnigy servos
Torque-to-Volume Ratio	93.62 oz-in/in³ Denser torque than 79% of 30 Turnigy servos
Speed-to-Weight	0.28986 (1/sec·g) Faster than 34% of 30 Turnigy servos
Speed-Torque Trade-off	8.75 Better balanced than 61% of 29 Turnigy servos
Torque Gain per Volt	9.91%/V More voltage-responsive (torque) than 21% of 20 Turnigy servos
Speed Gain per Volt	12.81%/V More voltage-responsive (speed) than 7% of 60 Slim servos
Voltage Range Width	1.2 V Wider voltage range than 47% of 44 Turnigy servos