Coreless motor, high-ratio metal gearing, encoder and embedded controller in a networked servo
Motion & Actuation · Networked smart servo actuator
XH540-W270-R
A compact networked servo whose highest torque figure is explicitly a stall value at a specified voltage and current—not a continuous joint rating.
ROBOTIS DYNAMIXEL XH540-W270-R · Also: XH540-W270-T/R
Reported values, conditions attached.
Evidence state describes the claim—not the prestige of the company or document.
| Claim | Reported value | Condition / boundary | State | Source |
|---|---|---|---|---|
| Stall torqueheadline_torque | 9.9 N·m | At 12.0 V and 4.9 A; the e-Manual warns that stall torque is not a continuous output rating. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| No-load speedspeed | 39 rpm | At 12.0 V; no load. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Weightmass | 165 g | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Gear ratiogear_ratio | 272.5:1 | No additional condition stated in the selected source. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Physical connectioncommunications | RS-485 multidrop | R suffix; T variant uses TTL. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
| Backlashbacklash | 15 arcmin | Equivalent value shown by manufacturer as 0.25°. | M · Manufacturer claimed | ROBOTIS e-Manual — XH540-W270-T/R ↗Specifications and performance graph Checked 2026-08-09 |
Known limits
What this record does not prove.
- No continuous output torque is published in the main specification table.
- The stall and no-load values describe opposite ends of the operating curve.