40KG Digital Servo Kit with Metal Gear for 1/8 1/10 RC Car

Key Features

• Precision Gear — The precision gears are wear-resistant and are not easy to collapse or sweep teeth.
• High Stall Torque — It delivers 40kg. cm of stall torque at 7.4V.
• Quick Response — It turns 60° in 0.19 seconds at 7.4V.

Product Specifications

• Scale: 1/8, 1/10
• Stall torque (7.4V): 40kg.cm
• Stall torque (6V): 35kg.cm
• Stall torque (5V): 31kg.cm
• Running speed (5V): 0.22sec60°
• Working speed (6V): 0.21sec60°
• Running speed (7.4V): 0.19sec60°
• Operating frequency: 1520μs/330Hz
• Pulse width range: 500μs-2500μs=180°
• Dead time: 3μs
• Net Weight: 73 g (2.6 oz)
• Size: 20.2 × 40 × 40.5 mm (0.8 × 1.57 × 1.6 in)

What It Is / How It Works

This is a digital servo kit for radio-controlled cars in the 1/8 and 1/10 scale range. It includes a 40KG digital servo and a 25T metal servo arm, along with a steering gear accessories package.

Who It's For / Use Cases

Digital servo kits like this suit RC hobbyists who build or upgrade the steering system of a 1/8 or 1/10 scale car. They also suit builders who want a servo with a higher stall torque rating for steering loads, as the figures in the specifications show.

How to Use / Care

1. Use it as the steering servo in a 1/8 or 1/10 scale radio-controlled car.
2. Attach the 25T metal servo arm to the servo output.

How to Choose

Match the stall torque to your steering load and battery voltage. The servo lists 31kg. cm at 5V, 35kg. cm at 6V and 40kg. cm at 7.4V. Check that the 20.2 × 40 × 40.5 mm body fits the servo bay in your chassis before you buy. Choose a kit whose arm and accessories match the steering linkage on your car.

Frequently Asked Questions

How much stall torque does it produce?
It produces 31kg. cm at 5V, 35kg. cm at 6V and 40kg. cm at 7.4V.

How fast does the servo respond?
It runs 60° in 0.22 seconds at 5V, 0.21 seconds at 6V and 0.19 seconds at 7.4V.

What is the gear made of?
The servo uses precision gears that are wear-resistant and not easy to collapse or sweep teeth. The kit is listed with a metal gear design.

What does the kit contain?
It contains one 40KG digital servo, one 25T servo arm and one set of steering gear accessories.

How much does the servo weigh?
It weighs 73 g (2.6 oz).