Product overview
The KST BLS805X is a standard servo from KST Meizhou Company Limited. Its physical architecture combines an aluminum alloy case, a brushless DC motor and hardened steel gears, with a potentiometer providing position sensing and two ball bearings completing the specified mechanical configuration. For installation planning, the case measures 40.5mm × 20mm × 38mm with a stated ±0.2mm tolerance, while its weight is 70g ±10%. These dimensions and mass define the component’s stated space and weight requirements.
Electrical integration requires a supply within DC6.0V–8.4V, with DC7.4V designated as the rated voltage, and a specified working frequency of 760us/560Hz. Torque and speed depend on supply voltage: at 6.0V, the figures are 5.5 Kgf.cm and 0.048sec/60°; at 7.4V, they are 6.5 Kgf.cm and 0.042sec/60°; and at 8.4V, they reach 7.5 Kgf.cm and 0.039sec/60°. The stated temperature range is -20°C to +65°C, establishing the thermal limits alongside the electrical operating range.
Specifications
| Specification | Value & conditions |
|---|---|
| Rated voltage | DC7.4V |
| Voltage range | DC6.0V-8.4V |
| Torque at 6.0V | 5.5 Kgf.cmAt 6.0V. |
| Torque at 7.4V | 6.5 Kgf.cmAt 7.4V. |
| Torque at 8.4V | 7.5 Kgf.cmAt 8.4V. |
| Speed at 6.0V | 0.048sec/60°At 6.0V. |
| Speed at 7.4V | 0.042sec/60°At 7.4V. |
| Speed at 8.4V | 0.039sec/60°At 8.4V. |
| Working frequency | 760us/560Hz |
| Temperature range | -20°C to +65°C |
| Case material | Aluminum Alloy |
| Motor type | Brushless DC Motor |
| Gear set material | Hardened Steel |
| Position sensor | Potentiometer |
| Case dimensions | 40.5mm*20mm*38mm±0.2mm |
| Weight | 70g±10% |
| Ball bearings | 2 BB |
