Kpower MM3000 Metal Gear Servo Motor, 4.8–8.4 V, for RC Models and Robot Joints

Kpower

$75.00 USD

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Version MM3000

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Overview

The Kpower MM3000 is a metal gear servo motor for RC models, robot joints, robotic arms and educational projects. It combines a DC brushed motor with potentiometer position sensing in a 60 × 30 × 60.5 mm housing weighing 188 g. Voltage-specific specifications list torque of 28 kg·cm at 4.8 V and 35 kg·cm at 6.0 V, helping buyers assess linkage and joint requirements.

Features

Metal gears driven by a DC brushed motor.
Potentiometer position sensor and two ball bearings (2BB).
Plastic and aluminum alloy case with an IP42 rating.
120° travel angle, with customization indicated.
25T, Ø8 mm horn spline.
PWM, TTL and RS-485 protocols listed.

Specifications

Voltage-Specific Performance

Parameter	At 4.8 V	At 6.0 V
Torque	28 kg·cm	35 kg·cm
Speed	0.20 s/60°	0.18 s/60°

Construction and Operating Parameters

Parameter	Value
Brand / model	Kpower MM3000
Stall torque, test voltage unspecified	30 kg; unit stated as kg, without a lever-arm length
Rated torque, test voltage unspecified	7.5 kg; unit stated as kg, without a lever-arm length
No-load speed, voltage and angular interval unspecified	0.18 s
Weight	188 g
Dimensions	60 × 30 × 60.5 mm
Travel angle range	120°; customizable
Operating voltage	4.8–8.4 V
Horn gear spline	25T, Ø8 mm
Gear material	Metal
Motor	DC brushed
Protocol	PWM / TTL / RS-485
No-load current	5000 mA
Position sensor	Potentiometer
Case material	Plastic + aluminum alloy
Ball bearings	2BB
Working frequency	50–333 Hz
Operating temperature	−10 to 50 °C
IP rating	IP42

Applications

RC vehicle linkages: Use for throttle control in 1/5-scale large RC cars, and for model actuation in 1/8- and 1/10-scale RC cars, Baja models, monster trucks and rock crawlers. The voltage-specific torque and speed values support actuator selection for the intended linkage.
Robot joints and robotic arms: Provide controlled joint or linkage movement using potentiometer position sensing and a 120° travel range.
Educational robot kits, STEM and maker intelligent-model projects: Demonstrate motor-driven mechanisms and positional control with a metal gear servo.
Industrial equipment mechanisms: Actuate positioning linkages using the specified travel range, horn spline and operating parameters.