| 62KG·CM STALL | 0.136S/60° NO-LOAD | 8.4V RATED |
| 81G WEIGHT | StainlessGEARTRAIN | 360°TRAVELCustomizable |
Overview
The XQ-S8060D is the 62 kg·cm member of the 20 mm coreless family. It keeps the 20 × 40 × 41 mm case and 81 g weight of the S8050D, but trades top speed for torque: 0.136 s/60° against 0.108 s/60°, for 62 kg·cm against 54 kg·cm. Same mounting holes, same 25T spline, more holding force.
Inside is a coreless motor driving a stainless steel geartrain on two ball bearings, in a CNC-machined aluminium case with a milled fin profile. Aluminium fins are not decoration — at 6.2 A stall the case is the heat path, and a machined case spreads that heat better than a plastic one.
The amplifier is digital, so the dead band stays at 1 µs across the voltage range and the servo holds position under load instead of drifting. Production units are sealed against splashing water; submersion is not covered.
Performance at each supply voltage
| Supply | No-load speed | Peak stall torque | Idle current | Stall current |
|---|---|---|---|---|
| 6.0 V | 0.180 s/60° (333 °/s) | 48 kg·cm (4.71 N·m / 667 oz·in) | 350 mA | 4.4 A |
| 7.4 V | 0.158 s/60° (380 °/s) | 55 kg·cm (5.40 N·m / 764 oz·in) | 390 mA | 5.4 A |
| 8.4 V | 0.136 s/60° (441 °/s) | 62 kg·cm (6.08 N·m / 861 oz·in) | 450 mA | 6.2 A |
Control specification
| Item | Specification |
|---|---|
| Command signal | PWM, 50–333 Hz |
| Amplifier | Digital controller |
| Pulse width range | 800–2200 µs |
| Neutral position | 1500 µs |
| Dead band | 1 µs |
| Rotating direction | CCW (1000–2000 µs) |
| Travel | 360°, customizable |
Mechanical specification
| Item | Specification | Item | Specification |
|---|---|---|---|
| Dimensions | 20 × 40 × 41 mm | Case material | Aluminium, CNC |
| Weight | 81 g | Geartrain | Stainless steel |
| Bearings | 2 × ball bearing | Motor | Coreless |
| Output spline | 25T-φ5.94 mm | Horn | Plastic, POM |
| Lead / connector | 300 mm | Mechanical limit | 210° |
| Operating temperature | −15 °C to 65 °C | Storage temperature | −20 °C to 70 °C |
| Ingress protection | Splash resistant (customizable) | Travel | 360°, customizable |
What’s in the box
- 1 × XQ-S8060D servo
- 1 × POM horn set
- 1 × mounting screw pack
Optional: metal horn, sold separately.
How to size it
Torque falls with voltage. The 62 kg·cm figure is measured at 8.4 V; on a 6.0 V rail the same servo is a 48 kg·cm unit, and at 7.4 V it is 55 kg·cm. Size the linkage at the lowest voltage the pack will see under load, not at the label.
At 8.4 V the stall current is 6.2 A and the no-load current is 450 mA. A BEC rated at 3 A will brown out on the first hard manoeuvre, so budget the rail for stall transients — roughly 10 A of headroom for a single servo of this size.
FAQ
Is the S8060D a drop-in replacement for the S8050D?
Mechanically yes — same 20 × 40 × 41 mm case, same 54 mm mounting span, same 25T-φ5.94 output spline. Electrically it is slower and stronger, so check that the servo saver and linkage were sized for 62 kg·cm and not for 54.
Can it run on a 6.0 V receiver pack?
Yes. At 6.0 V it delivers 48 kg·cm at 0.180 s/60° and draws 4.4 A at stall. Nothing in the servo needs reconfiguring; only torque and speed change with the rail.
Is it waterproof?
It is splash resistant — rain, spray and wash-down from a distance are fine. It is not rated for submersion, and the output shaft seal is the first thing to fail if the case sits in water.
Which horn fits?
Any standard 25T spline horn with a φ5.94 mm centre. A POM horn set and screw pack ship in the box; the aluminium horn is a separate item.
Other interfaces
Downloads
- XQ-S8060D inspection specification (PDF, 856 KB)
Torque, speed and current at each supply voltage, mechanical data, control specification, mounting dimensions. - 2D dimension drawing (image)
Mounting hole positions, case depth and overall height; the same drawing is inside the datasheet.
