Part comparison

Blue Bird BMS-28A vs Power HD LW-25MG

A side-by-side comparison of source-backed specifications within the same subcategory.

12 shared specs2 scored

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No imageBlue BirdBlue Bird BMS-28ABMS-28A

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Power HDPower HD LW-25MGLW-25MG

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Directional spec summary

Counts across 2 numeric specifications with a clear higher-or-lower direction.

Part A leads

Tied

Part B leads

These are metric-by-metric differences, not an overall performance score. Check the values below.

Specifications

12 specifications compared side by side.

Blue Bird BMS-28A / Power HD LW-25MG
Compare bySpecification	ABlue BirdBlue Bird BMS-28A	BPower HDPower HD LW-25MG
Physical1
Weight	74 g	72 g2 g lower
Performance1
Stall torque	2.746 Nm0.294 Nm higher	2.452 Nm
Electrical2
Minimum voltage	6 V	6 V
Maximum voltageUse-dependent	7.4 V	8.4 V
Mechanical & integration4
Motor kind	Rc servo	Rc servo
Drive principle	servo actuator	servo actuator
Architecture	Integrated servo module	Integrated servo module
Gear material	metal	metal
Control & communication3
Communication interfaces	PWM	PWM
Control modes	PWM servo	PWM servo
Servo signal	PWM	PWM
Other specifications1
PWM pulse center	1500 µs	1500 µs

ABlue BirdBlue Bird BMS-28A

BPower HDPower HD LW-25MG

Physical1

Weight

Part A74 g

Part B72 g2 g lower

Performance1

Stall torque

Part A2.746 Nm0.294 Nm higher

Part B2.452 Nm

Electrical2

Minimum voltage

Part A6 V

Part B6 V

Maximum voltageUse-dependent

Part A7.4 V

Part B8.4 V

Mechanical & integration4

Motor kind

Part ARc servo

Part BRc servo

Drive principle

Part Aservo actuator

Part Bservo actuator

Architecture

Part AIntegrated servo module

Part BIntegrated servo module

Gear material

Part Ametal

Part Bmetal

Control & communication3

Communication interfaces

Part APWM

Part BPWM

Control modes

Part APWM servo

Part BPWM servo

Servo signal

Part APWM

Part BPWM

Other specifications1

PWM pulse center

Part A1500 µs

Part B1500 µs

Product sources

Product sources used by this comparison

Blue Bird BMS-28AOpen source ↗

Power HD LW-25MGOpen source ↗