Power HD Blue Aluminium Standard Coreless 20kg 8.4v Steel Geared Waterproof Servo

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Power HD Blue Aluminium Standard Coreless 20kg 8.4v Steel Geared Waterproof Servo

Brand: Power HD | SKU: WH-20KG

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$116.91

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On Order Since Nov 19, 2025

2 weeks ago

The date we ordered this product from our supplier.

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Description

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.

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 brings a range of crawler specific high-torque & high-voltage servos. With three variants; 40kg/cm, 30kg/cm, & 20kg/cm featuring a waterproof case & wiring system.

Features

Servo case is CNC machined, ensuring higher quality
Customised Power HD waterproofing system
Uses Hardened Steel Gears for extra strength and durability
The 32-bit high-frequency MCU creates more precise operation with locked-rotor & power-on slow-start protection
Casing is anodized in Blue

Specifications

Torque(6.0V): 15.0 kg-cm (208.3 oz/in)
Torque(7.4V): 18.0 kg-cm (250.0 oz/in)
Torque(8.4V): 20.0 kg-cm (277.7 oz/in)
Speed: 0.11 sec (6.0V) ? 0.09 sec (7.4V) ? 0.08 sec (8.4V)
Operating Voltage?6.0 ~ 8.4 DC Volts
Weight: 82.0 g (2.89 oz)
Bearing Type?Ball Bearing x 2
Motor Type?Coreless Motor
Gear Type?Titanium & Steel
Operating Temperature?-20?~60?
Working frequence?1520?s / 333hz
Size?40.7 x 20.5 x 38.5 mm (1.60 x 0.81 x 1.52 in)

Included items

Description	QTY
Blue Aluminium Standard Coreless 20kg 8.4v Steel Geared Waterproof Servo	1
Hardware Set	1
Decal Sheet	1

Power HD WH-20KG Coreless Servo Dimensions

Total Height (A) = 44mm
Body Width (B) = 40.7mm
Below Mount (C) = 28mm
Above Mount (D) = 16mm
Total Length (E) = 20.6mm
Total Width (F) = 54.2mm

Specifications

Servo

Total Width: 54.2mm
Servo Spline Count: 25Tooth
Top to Under Mount: 16mm
Total Length: 20.6mm
Body Length: 40.7mm
Bottom to Under Mount: 28mm
6V Sec/60 Degrees Seconds per 60 degrees of rotation: .11
Total Height: 44mm
Signal Type: Digital
Case Material: Aluminium
6V Torque kg/cm Kilograms of torque at 25mm away from the center of the spline: 20
Gear Material: Titanium & Steel
Waterproof Casing: Yes
Drive Motor Type: Coreless
Size Conventionally sized servo names: Standard

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