Stall torque
Part A2.746 Nm
Part B4.903 Nm2.157 Nm higher
Part comparison
Blue Bird BMS-28A vs Hitec D845WP
A side-by-side comparison of source-backed specifications within the same subcategory.
11 shared specs1 scored
Directional spec summary
Counts across 1 numeric specifications with a clear higher-or-lower direction.
Part A leads
0
Tied
0
Part B leads
1
These are metric-by-metric differences, not an overall performance score. Check the values below.
Specifications
11 specifications compared side by side.
| Compare bySpecification | ABlue BirdBlue Bird BMS-28A | BHitecHitec D845WP |
|---|---|---|
| Performance1 | ||
| Stall torque | 2.746 Nm | 4.903 Nm2.157 Nm higher |
| Electrical2 | ||
| Minimum voltageUse-dependent | 6 V | 3.5 V |
| Maximum voltageUse-dependent | 7.4 V | 8.4 V |
| Mechanical & integration4 | ||
| Motor kind | Rc servo | Rc servo |
| Drive principle | servo actuator | servo actuator |
| ArchitectureUse-dependent | Integrated servo module | Rc servo module |
| Gear materialUse-dependent | metal | steel |
| 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
BHitecHitec D845WP
Performance1
Electrical2
Minimum voltageUse-dependent
Part A6 V
Part B3.5 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
ArchitectureUse-dependent
Part AIntegrated servo module
Part BRc servo module
Gear materialUse-dependent
Part Ametal
Part Bsteel
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 ↗
Hitec D845WPOpen source ↗