Product overview
The AXR 7306 MG-D uses a coreless motor, metal gears and two bearings in a 20 × 7 × 19.1 mm body weighing 7.8 g. Its 185 mm cable supports electrical integration into compact installations, while PWM control operates at 333 Hz. Mechanical selection needs to account for mounting holes, the servo-arm connection and linkage geometry. Required torque depends on control-surface loading, lever arm and movement speed; mounting fabrication also requires the final drawing and interface version because dimensional reference points can differ.
Performance varies with supply voltage: stall torque rises from 1.2 kg·cm at 3.8 V to 1.8 kg·cm at 7.4 V and 2.5 kg·cm at 8.4 V. These are stall values; rated torque is 0.6 kg·cm at 8.4 V, and continuous operation also depends on duty cycle. Integration must reconcile the 1520 µs reference pulse with the 1500 µs position midpoint for the controller and delivered version. Initial setup calls for unloaded or limited-load movement checks, adequate transient-current capacity and avoidance of sustained mechanical end-stop loading.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | AXR 7306 MG-D micro servo |
| Intended application | Lightweight fixed-wing control surfaces and compact mechanisms |
| Operating voltage | 3.8–8.4 V |
| Stall torque | 1.2 kg·cmTest voltage: 3.8 V. |
| No-load speed | 0.145 s/60°Test voltage: 3.8 V. |
| Running current | 0.05 ATest voltage: 3.8 V. |
| Stall current | 0.6 ATest voltage: 3.8 V. |
| Stall torque | 1.8 kg·cmTest voltage: 7.4 V. |
| No-load speed | 0.075 s/60°Test voltage: 7.4 V. |
| Running current | 0.075 ATest voltage: 7.4 V. |
| Stall current | 0.9 ATest voltage: 7.4 V. |
| Stall torque | 2.5 kg·cmTest voltage: 8.4 V. |
| No-load speed | 0.061 s/60°Test voltage: 8.4 V. |
| Running current | 0.11 ATest voltage: 8.4 V. |
| Stall current | 1.1 ATest voltage: 8.4 V. |
| Rated torque | 0.6 kg·cmSupply voltage: 8.4 V. |
| Overall dimensions | 20 × 7 × 19.1 mm |
| Weight | 7.8 g |
| Motor type | Coreless motor |
| Gear material | Metal |
| Bearing count | 2 |
| Cable length | 185 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° |
| Continuous-load limitation | Stall torque is not a continuous-load rating; continuous-duty selection must also consider rated torque and duty cycle. |
| Voltage coverage limitation | The permitted supply range does not imply performance measurements at every voltage. |
| Center and travel qualification | The reference pulse is 1520 µs, while the position midpoint is 1500 µs; establish center and usable travel for the controller and delivered version.Controller and delivered servo version determine center and usable travel. |
| Mounting qualification | Drawing and specification dimensions may use different reference points; establish the final mounting drawing and interface version before fabricating mounts.Final mounting drawing and interface version. |
