Stall torque
Part A1.961 Nm1.353 Nm higher
Part B0.608 Nm
Part comparison
KST BLS815 vs KST X12-508
A side-by-side comparison of source-backed specifications within the same subcategory.
12 shared specs3 scored
Directional spec summary
Counts across 3 numeric specifications with a clear higher-or-lower direction.
Part A leads
2
Tied
1
Part B leads
0
These are metric-by-metric differences, not an overall performance score. Check the values below.
Specifications
12 specifications compared side by side.
| Compare bySpecification | AKSTKST BLS815 | BKSTKST X12-508 |
|---|---|---|
| Performance3 | ||
| Stall torque | 1.961 Nm1.353 Nm higher | 0.608 Nm |
| Stall torque @ 8.4V | 20 kg·cm13.8 kg·cm higher | 6.2 kg·cm |
| Speed @ 8.4V | 0.07 s/60° | 0.07 s/60° |
| Electrical2 | ||
| Minimum voltage | 6 V | 6 V |
| Maximum voltage | 8.4 V | 8.4 V |
| Mechanical & integration3 | ||
| Motor kind | Rc servo | Rc servo |
| Drive principle | servo actuator | servo actuator |
| ArchitectureUse-dependent | Integrated servo module | Servo module |
| 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 |
AKSTKST BLS815
BKSTKST X12-508
Performance3
Stall torque @ 8.4V
Part A20 kg·cm13.8 kg·cm higher
Part B6.2 kg·cm
Speed @ 8.4V
Part A0.07 s/60°
Part B0.07 s/60°
Electrical2
Minimum voltage
Part A6 V
Part B6 V
Maximum voltage
Part A8.4 V
Part B8.4 V
Mechanical & integration3
Motor kind
Part ARc servo
Part BRc servo
Drive principle
Part Aservo actuator
Part Bservo actuator
ArchitectureUse-dependent
Part AIntegrated servo module
Part BServo module
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
KST BLS815Open source ↗
KST X12-508Open source ↗