Feature:1. Can be used in DIY small slider/project/equipment measurement/laser printer2. 2phase 4wire micro stepper motor come with planetary gearbox, planetary gearbox reducer adopts all metal structure3. The stroke drive accurate diagonal lines to move the metal slider up and down, the bracket is basically made of metal structure4. Using high class materials with good quality to guarantee stable performance and high working efficiency5. Adopt advanced technology with fine workmanship, which is a necessary linear moving partsSpecification:Item Type: Stepper Motor LinearMotor Type: 2-Phase 4-wireDrive Voltage: 4-9V/100-500mA (the higher the voltage, the greater the force, the greater the heat)Lead Screw Length: Approx. 90mm / 3.5inSlider Stroke: Approx. 80mm / 3.1inMotor Diameter: Approx. 15mm / 0.6inLead Screw Diameter: Approx. 3mm / 0.1inLead Screw Pitch: 0.5mmStep Angle: 18Phase Resistance: 15.5 ohmsOverall Size: Approx. 15 x 105mm / 0.6 x 4.1inBlue A+Black A-Red B+Yellow B-.Package List:1 x Stepper Motor LinearNote:Note that it's a stepper motor, directly connected to the power will not rotate, need stepper motor drive board and control board.