• Black and gold Kpower servo at an angle, showing the splined output shaft, mounting tabs, and analog servo label.
  • Straight-on view of the gold servo casing with K-power and ANALOG SERVO markings, black housing, and side mounting tabs.
  • Servo underside showing a black four-screw bottom cover, gold casing, mounting tabs, and red, orange, and dark wires.
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Kpower DMM0900 Analog Servo Motor, 4.8–6.0 V, 25T Metal Shaft for RC Models and Robotics

Kpower DMM0900 Analog Servo Motor, 4.8–6.0 V, 25T Metal Shaft for RC Models and Robotics

Kpower

$55.00 USD
$55.00 USD
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Overview

The Kpower DMM0900 is a standard analog servo motor for RC models, mechanical arms, robots and DIY motion-control projects. Operating at 4.8–6.0 V, it combines metal gearing, a CNC aluminum middle case and dual ball bearings. Its 25T metal output shaft supports linkage attachment, while the JR/Futaba-compatible connector provides the control connection. Travel is specified at 120° ± 3°.

Features

  • Metal drivetrain: copper and aluminum gearing with a 25T metal output shaft, external splines and a central threaded hole.
  • Aluminum construction: CNC-machined 7075 aluminum middle case for heat dissipation.
  • Bearing support: dual ball bearings.
  • Gear treatment: imported gears with anodizing treatment.
  • Control features: anti-burn and anti-shake features.
  • Mounting: mounting ears at both ends, with two mounting slots per end.
  • Connection: permanently attached three-wire lead terminating in a black, three-position JR/Futaba-compatible connector.

Specifications

Parameter DMM0900
Brand Kpower
Model DMM0900
Servo type Standard analog servo
Gear material Copper + aluminum
Signal range 900–2100 μs
Case material 7075 aluminum middle case; CNC-machined
Motor type Core
Operating temperature −10 °C to +50 °C
Dead band 5 μs
Travel angle 120° ± 3°
Refresh frequency 50–333 Hz
Operating voltage range 4.8–6.0 V
Dimensions 40 × 20 × 40 mm
Weight 60 g ± 1 g
Wire gauge and insulation 22 AWG PVC
Output shaft 25T metal shaft; externally splined with a central threaded hole
Bearings Dual ball bearings
Connector Black three-position connector on an attached three-wire lead; JR/Futaba compatible
Mounting points Two mounting slots at each end

Performance by Supply Voltage

Parameter At 4.8 V At 6.0 V
No-load speed 0.25 ± 0.01 s/60° 0.21 ± 0.01 s/60°
Stall torque 13.0 ± 0.20 kg·cm 16.5 ± 0.20 kg·cm
No-load current 600 ± 30 mA 700 ± 30 mA
Stall current 2100 ± 40 mA 2500 ± 50 mA

Applications

  • RC cars and model boats: actuate steering or rudder linkages using the 25T output shaft and specified 120° ± 3° travel.
  • Model aircraft and drones: position mechanical control linkages using the attached servo lead and JR/Futaba-compatible connector.
  • Mechanical arms and robots: drive positioning linkages with metal gearing and dual ball-bearing support. Stall torque is 13.0 ± 0.20 kg·cm at 4.8 V or 16.5 ± 0.20 kg·cm at 6.0 V.
  • DIY and smart-home projects: add controlled movement to small mechanisms using the 900–2100 μs signal range and 4.8–6.0 V supply.

Documents and Downloads

Visual Details

Features and Design

Kpower DMM0900 servo with aluminum middle case, splined shaft and connector lead
The Kpower servo is labelled DMM0900 and STANDARD SERVO. The DMM0900 is labelled as an analog servo.
Side view of the analog servo with metallic middle case and attached cable
The servo case is labelled ANALOG SERVO. The servo has an aluminum middle case.
25T metal output-shaft detail with gear and surface-treatment labels
The DMM0900 has a 25T metal output shaft. The DMM0900 detail panel specifies imported gears.
Servo connector detail alongside metal-gearing and aluminum-case feature labels
The servo connector is labeled JR/Futaba compatible. The DMM0900 uses all-metal gearing.
Kpower custom-servo development graphic with housing, gear and connector examples
Kpower custom-servo development graphic with gear, housing, connector and protocol examples
Generic exploded servo assembly with gears, bearings, motor, housings and electronics
Exploded servo assembly with labeled gears, seals, motor, potentiometer, housings and drive PCB

Product Views

Two angled DMM0900 views with output shaft, mounting ears and cable
The servo is labelled K-power DMM0900 STANDARD SERVO. The DMM0900 case is labelled ANALOG SERVO.
DMM0900 close-ups of the threaded splined shaft and paired mounting slots
The servo is labelled DMM0900 STANDARD SERVO. The DMM0900 is labelled ANALOG SERVO on its middle case.

Application Examples

Application examples featuring model aircraft, cars, boats, mechanical arms, robots and DIY
The servo is intended for aeromodelling applications. The servo is intended for car-model applications.
Kpower drive-and-control application chart for robotics, RC models and other sectors
Kpower application chart covering robotics, automation, RC models, drones, agriculture and other industries

Additional Product Details

Illustrated flat, cross, round, star and single-arm servo horn shapes
Flat, cross, round, star and single-arm servo horn shapes
Generic ODM development workflow from requirements and design to mass production
ODM development workflow from needs assessment and product design to sampling and mass production

Interfaces and Connections

Generic three-pin servo diagram labeling brown ground, red Vcc and orange signal
Three-pin servo connector diagram identifying brown ground, red Vcc and orange signal wires

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