Stall torque
Part A2.746 Nm0.294 Nm higher
Part B2.452 Nm
Part comparison
Blue Bird BMS-28A vs Savox SC-0251MG+
A side-by-side comparison of source-backed specifications within the same subcategory.
13 shared specs3 scored
Directional spec summary
Counts across 3 numeric specifications with a clear higher-or-lower direction.
Part A leads
3
Tied
0
Part B leads
0
These are metric-by-metric differences, not an overall performance score. Check the values below.
Specifications
13 specifications compared side by side.
| Compare bySpecification | ABlue BirdBlue Bird BMS-28A | BSavoxSavox SC-0251MG+ |
|---|---|---|
| Performance3 | ||
| Stall torque | 2.746 Nm0.294 Nm higher | 2.452 Nm |
| Stall torque @ 7.4V | 28 kg·cm3 kg·cm higher | 25 kg·cm |
| Speed @ 7.4V | 0.1 s/60°0.05 s/60° lower | 0.15 s/60° |
| Electrical2 | ||
| Minimum voltage | 6 V | 6 V |
| Maximum voltage | 7.4 V | 7.4 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
BSavoxSavox SC-0251MG+
Performance3
Stall torque @ 7.4V
Part A28 kg·cm3 kg·cm higher
Part B25 kg·cm
Speed @ 7.4V
Part A0.1 s/60°0.05 s/60° lower
Part B0.15 s/60°
Electrical2
Minimum voltage
Part A6 V
Part B6 V
Maximum voltage
Part A7.4 V
Part B7.4 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 ↗
Savox SC-0251MG+Open source ↗