Does the pulse width need to vary beyond the range produced by a typical hobby receiver to get the full 270 degree rotation?

Yes,you're right! Generally speaking, the output pulse width of the remote control is in the range of 1000-2000,so the displayed angle is 135 degrees;To get the full 270 degrees rotation, the output pulse width should be 500-2500. :)

Will this servo fit a traxxas rustler?

Yes,this rc servo can fit traxxas rustler

What are the motor arm dimensions? What size are the holes in the arm? Are they clearance holes or threaded? Where are the wires located on the back?

Thanks for your question.Servo Arm is 25Tooth,they are threaded.More info please contact with seller.

my esc has output voltage of 12v can work with 12v?

It's not ok cause the voltage is too high

20kg Digital Servo High Torque Full Metal Gear Waterproof Rc

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R635

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Description

⚙️ Power your robotics with precision and unstoppable torque!

LIGHTWEIGHT COMPACT - At just 60g and 40x20x40.5mm, it fits seamlessly into your high-performance DIY projects.
PRECISION ENGINEERING - CNC aluminum shell with copper & aluminum gears ensures durability and smooth operation.
EXTENDED CONTROL RANGE - 270° rotation control with 360° free rotation when powered off for versatile robotic articulation.
UNMATCHED TORQUE POWER - Delivers a commanding 21.5 kg.cm torque for heavy-duty RC and robotic precision.
WATERPROOF RELIABILITY - Sealed with rubber gaskets to keep your servo performing flawlessly in any environment.

The DS3218MG 20KG Digital Servo combines high torque (up to 21.5 kg.cm), waterproof full-metal gears, and a CNC aluminum shell to deliver precise 270° rotation control. Lightweight and engineered for durability, it’s ideal for advanced RC models, robotic arms, and DIY projects demanding reliable, high-performance servo motors.

Specifications

ASIN	B076CNKQX4
Age Range Description	Adult
Best Sellers Rank	#47,991 in Toys & Games ( See Top 100 in Toys & Games ) #36 in RC Servos
Brand Name	ANNIMOS
Color	Red, Black
Customer Reviews	4.5 4.5 out of 5 stars (5,305)
Educational Objective	Learn about robotics and programming
Global Trade Identification Number	00601263451471
Indoor Outdoor Usage	Outdoor
Item Dimensions	1.57 x 1.59 x 0.79 inches
Item Weight	59 g
Manufacturer	ANNIMOS
Manufacturer Part Number	DS3218
Manufacturer recommended age	8 - 20 years
Material Type	Copper & Aluminum
Model Number	DS3218
Number of Packs	1
Number of Players	1
Operation Mode	Manual
Power Source	Battery
Set Name	ANNIMOS 20KG Digital Servo
Size	20kg-270°（digital）
Supported Battery Types	Alkaline or rechargeable batteries
Theme	Cars
UPC	601263451471
Unit Count	1 Count

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R635

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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20KG Digital Servo High Torque Full Metal Gear Waterproof for RC Model DIY, DS3218MG,Control Angle 270°

Description

Specifications

Common Questions