Blue Bird BMS-303DMG

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*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-10-25

Identity
Brand
Product Number	BMS-303DMG
Category	Hobby
Discontinued	Yes
Performance
Torque	6.0V 14.16 oz-in 4.8V 9.91 oz-in Average
Speed	6.0V 0.09 sec/60° 4.8V 0.11 sec/60° Below Average
Physical
Weight	0.16 ozAverage
Dimensions	L 0.75 in W 0.29 in H 0.61 in
Drivetrain
Motor Type	Coreless
Gears	Metal
Gear Spline/Teeth	25 T estimate
Control & Signal
Modulation	Digital
Electrical & Environment
Operating Voltage	4.8–6 V
Connectivity
Connector	JR (Universal) estimate

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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

*Spec is estimated from brand data.

Class Comparison

Torque	Average Stronger than 52% of 32 Digital Nano servos at 4.8V
Speed	Below Average Faster than 30% of 31 Digital Nano servos at 4.8V
Weight	Average Lighter than 50% of 89 Digital Nano servos

Performance Analysis

Shaft Power	0.17–0.29 W
Power Density	2.193 W/in³ More power-dense than 69% of 81 Digital Nano servos
Torque Density	2.2523 oz-in/g Stronger than 58% of 32 Digital Nano servos
Torque-to-Volume Ratio	74.69 oz-in/in³ Denser torque than 68% of 32 Digital Nano servos
Speed-to-Weight	2.06612 (1/sec·g) Faster than 47% of 31 Digital Nano servos
Speed-Torque Trade-off	1.09 Better balanced than 57% of 31 Digital Nano servos
Torque Gain per Volt	35.74%/V 2nd-highest torque gain per volt of 23 Digital Nano servos
Speed Gain per Volt	18.52%/V More voltage-responsive (speed) than 57% of 29 Blue Bird servos
Voltage Range Width	1.2 V Wider voltage range than 32% of 77 Digital Nano servos