Blue Bird BMS-A56V

Search Amazon Search eBay

Compatible Hardware

Amazon eBay

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-25

Identity
Brand
Product Number	BMS-A56V
Category	Hobby
Performance
Torque	7.4V 119.45 oz-in 6.0V 97.23 oz-in Above Average
Speed	7.4V 0.12 sec/60° 6.0V 0.15 sec/60° Average
Physical
Weight	1.00 ozBelow Average
Dimensions	L 1.18 in W 0.39 in H 1.36 in
Drivetrain
Motor Type	3-pole
Gears	Titanium
Gear Spline/Teeth	25 T
Rotation/Support	Dual Bearings
Control & Signal
Modulation	Digital
Pulse Cycle	3 ms
Neutral Position	1520 µs
Dead Band	1 µs
Refresh Rate	333 Hz
Control System	PWM
Electrical & Environment
Operating Voltage	6–8.4 V
Power Source	2S Li-Po / 2S Li-Fe
Connectivity
Connector	JR (Universal) estimate
Origin
Country of Origin	Taiwan

Submit Missing Data Report an Error

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	Above Average Stronger than 79% of 40 Digital Slim servos at 6.0V
Speed	Average Faster than 45% of 41 Digital Slim servos at 6.0V
Weight	Below Average Lighter than 15% of 83 Digital Slim servos

Performance Analysis

Shaft Power	1.20–1.84 W
Power Density	2.941 W/in³ More power-dense than 46% of 83 Digital Slim servos
Torque Density	3.4236 oz-in/g Stronger than 69% of 40 Digital Slim servos
Torque-to-Volume Ratio	155.35 oz-in/in³ Denser torque than 74% of 40 Digital Slim servos
Speed-to-Weight	0.23474 (1/sec·g) Faster than 25% of 41 Digital Slim servos
Speed-Torque Trade-off	14.58 Better balanced than 79% of 40 Digital Slim servos
Voltage Range Width	2.4 V Wider voltage range than 35% of 75 Digital Slim servos