Product overview
The Zhuhai SV Tech Co., Ltd. AXR 7455 MG-D is a micro servo for lightweight fixed-wing control surfaces and compact linkage mechanisms. Its configuration combines an iron-core motor, metal gears and two bearings in a 23.6 × 11.7 × 21.3 mm body weighing 13 g. A 250 mm cable supports installation within compact assemblies. Integration requires matching the power supply, PWM pulse widths, mounting holes and servo-arm connection. Mount fabrication also depends on the final installation drawing and interface version, because dimensional references can differ.
The servo accepts 4.8–8.4 V and uses PWM control at 333 Hz. At 7.4 V, it has 5.3 kg·cm stall torque, 0.101 s/60° no-load speed and 1.5 kg·cm rated torque. Continuous-load selection must account for rated torque and duty cycle. The 1520 µs reference pulse and 1500 µs position midpoint require controller-specific neutral and travel setup. Initial adjustment should use a removed or limited load, with supply headroom for transient current and protection against sustained loading at mechanical stops.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | Zhuhai SV Tech Co., Ltd. AXR 7455 MG-D micro servo |
| Intended application | Lightweight fixed-wing control surfaces and compact mechanisms |
| Operating voltage | 4.8–8.4 V |
| Performance at 4.8 V |
|
| Performance at 6 V |
|
| Performance at 7.4 V |
|
| Rated torque | 1.5 kg·cmSupply voltage: 7.4 V. |
| External dimensions | 23.6 × 11.7 × 21.3 mm |
| Weight | 13 g |
| Motor type | Iron-core motor |
| Gear material | Metal gears |
| Bearing count | 2 |
| Cable length | 250 mm |
| Control signal | PWM |
| Operating frequency | 333 Hz |
| Reference pulse width | 1520 µs |
| Pulse width and corresponding angle | 500 / 1500 / 2500 µs → -90 / 0 / 90° |
| Torque limitation | Stall torque is not a continuous-load rating; continuous-duty selection must account for rated torque and duty cycle.Continuous-load operation. |
| Voltage-range limitation | The operating range specifies permitted supply voltage.Supply voltage within 4.8–8.4 V. |
| Neutral position and travel | The 1520 µs reference pulse differs from the 1500 µs position midpoint; establish neutral position and usable travel for the controller and delivered version.Controller and delivered servo version. |
| Mounting dimensions | Drawing and specification dimensions may use different reference bases; establish the final mounting drawing and interface version before fabricating mounts.Mount fabrication and interface version. |
| Integration checks | Check power, signal pulse width, mounting holes and servo-arm connection. Establish neutral position, movement direction and mechanical travel before progressively applying working load.Initial setup with the load removed or limited. |
| Power and mechanism constraints | Allow supply headroom for transient current; avoid cable voltage drop, reversed connections and sustained loading against mechanical stops.Transient current demand and mechanical travel limits. |
