RF-300EA-1D390 PDF – Metal-Brush DC Motor – Mabuchi

Part Number: RF-300EA-1D390

Function: DC Motor ( Precious metal-brush motor )

Package: Module type

Manufacturer: MABUCHI MOTOR

Images:RF-300EA-1D390 pdf datasheet

Description

RF-300EA-1D390 is Precious metal-brush motor.

A metal-brush motor, also known as a brushed DC motor or simply a DC motor, is a type of electric motor that uses brushes made of metal (typically carbon or copper) to conduct electrical current between the stationary part of the motor (the stator) and the rotating part (the rotor). These motors are widely used in various applications where precise and continuous rotational motion is required.

1. Brushes: Metal-brush motors use brushes (often made of carbon or copper-graphite composites) to maintain electrical contact with the commutator, a split-ring device mounted on the rotor. These brushes transfer electrical current to the rotor windings, allowing the motor to rotate.

2. Commutator and Rotor: The commutator is a critical component that reverses the direction of the current flowing through the rotor windings as the rotor turns. This reversal ensures continuous rotation of the rotor. The rotor may have permanent magnets or wound coils, depending on the motor type.

3. Directional Control: By controlling the polarity and timing of the electrical current applied to the brushes, the direction of rotation of the motor can be easily controlled. Reversing the current direction reverses the motor’s rotation.

 

Typical Applications:

1. Office Automation Equipment : CD/DVD-ROM Drive

2. Audio and Visual Equipment : Car CD Player / DVD Player

 

RF-300EA-1D390 PDF Datasheet

NEMA17 Datasheet – 2-Phase Stepper Motor

Part Number: NEMA17

Function: 2-Phase Stepper Motor

Pacakge :  1.7 x 1.7 inch (43.2 x 43.2 mm)

Manufacturer: Schneider Electric

This post explains for the Stepper Motor NEMA 17.

Image

NEMA17 Stepper Motor

Description

A stepper motor to satisfy all your robotics needs! This 4-wire bipolar stepper has 1.8° per step for smooth motion and a nice holding torque. The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit motor shield for Arduino (or other motor driver) and a wall adapter or lead-acid battery.

Some nice details include a ready-to-go cable and a machined drive shaft (so you can easily attach stuff). We drove it with an Adafruit motor shield for Arduino and it hummed along nicely at 50 RPM.

NEMA17 Pinout

(  Black(A+), Green(A-), Red(B+), Blue(B-) )

NEMA17 datasheet pinout

Features

This is high torque Nema 17 stepper motor with 1.8 deg. step angle (200 steps/revolution). Each phase draws 2A, allowing for a holding torque of 45Ncm(63.7oz.in). It’s ideal for the RepRap Prusa, Mendel 90, Rostock and similar 3D printers, as well as CNC and robotics applications.

 

Reference Sites

1. https://reprap.org/wiki/NEMA_17_Stepper_motor
2. https://howtomechatronics.com/tutorials/arduino

 

NEMA17 Datasheet PDF Download

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