The steel D-840WP is part of Hitec D-Series servo line. All Hitec D-Series servos have been designed using our brand new, cutting edge, custom engineering. Combining industry leading high-resolution, state-of-the-art ultra-response technology with a 32-bit MCU and 12-bit ADC for unprecedented programmability and flexibility, these servos deliver significantly smoother movement. The speedy, powerful line operates on a wide 4.8 ~ 8.4 voltage range, allowing use with any common battery chemistry without the need for adapters or regulators. Featuring Hitec’s 15 tooth HD output spline with 3mm hex screw, each D-Series servo brings monster performance never known before in the market.
Specifications:
| Operating Voltage Range (Volts DC) | 4.8V ~ 6.0V ~ 7.4V |
| Speed (Second @ 60°) | 0.17 ~ 0.14 ~ 0.11 |
| Maximum Torque Range oz. / in. | 265 ~ 335 ~ 419 |
| Maximum Torque Range kg. / cm. | 19.0 ~ 24.0 ~ 30.0 |
| Current Draw at Idle | 30 mA |
| No Load Operating Current Draw | 1,600 mA |
| Stall Current Draw | 9,000 mA |
| Dead Band Width | 2 µs |
| Dimensions (Inches) | 2.59 x 1.26 x 2.44 |
| Dimensions (Metric) | 66 x 32 x 62 |
| Weight (Ounces) | 8.0 |
| Weight (Gram) | 227.0 |
| Circuit Type | Digital Amplifier with Mosfet Drive |
| Motor Type | 5 Poles Cored Metal Brush |
| Gear Material | Steel |
| Bearing Type | Dual Ball Bearing |
| Output Shaft (type / Ømm) | Mega 15 |
| Case Material | Plastic / Aluminum |
| Dust / Water Resistance | IP 67 |
| Connector Gauge (AWG) / Strand Count | 25 / 80 |