Servos are powered by the ESC's output to the receiver. If you're using a higher-strength servo than the ESC can support (usually greater than 20kg), you may experience 'brown-outs' where the radio signal can be interrupted and cause erratic driving. This can be helped by plugging a Glitch Buster into the receiver smoothing the current delivery. However, in some cases, you may need to install an external BEC.

The Power HD W50 High Voltage Servo feature all-aluminium housings, with high-power brushless motor as the core power, offering amazing torque output. American imported ST32-bit MCU control chip ensure superior servo performance.

Here's a nice over power winch.

Features

Operating Voltage	6.0v	7.4v	8.4v
Torque	35.0 kg-cm / (486.1 oz/in)	45.0 kg-cm / (625.0 oz/in)	50.0 kg-cm / (694.4 oz/in)
Speed	1.3 sec	1.0 sec	0.9 sec
Bearing Type	Ball Bearing x 2
Motor Type	Brushless Motor
Gear Type	Steel
Working frequency	1520?s / 333hz
Operating temperature	-20?~60?
Weight	80 g (2.82 oz)
Size	40.8 x 20.5 x 38.7 mm ( 1.60 x 0.81 x 1.52 in)

Power HD Brushless Servo Specifications

Total Height (A) = 43.6mm
Body Width (B) = 40.8mm
Below Mount (C) = 27.5mm
Above Mount (D) = 16.1mm
Total Length (E) = 53.7mm
Total Width (F) = 20.5mm

How To: Install a Servo

In this video, Hamish gives a step-by-step guide on installing a Servo and how to avoid stripping your servo gears.

Power HD W50-360 50KG 8.4V Brushless Metal Geared Winch Servo

Videos

Power HD W50-360 50KG 8.4V Brushless Metal Geared Winch Servo