Wear resistant, high hardness, and long service life. Widely used for small devices such as equipment, engraving machines, etc. DIY installation process helps improve hands-on ability. The motor requires an A4988 driver (not included) to operate and cannot be directly connected to power. Maximum linear speed is 25mm per second. Material: Metal Color: Silver Model: D8-MOTOR80 Rated voltage: 9-12V Thread rod diameter: 3mm / 0.1in Thread rod length: 90mm / 3.5in Slider block stroke: 80mm / 3.1in Drive mode: Bipolar drive Thread rod pitch: 0.5mm / 0.02in (Moves 0.025mm per step; microstepping driver can be used for smaller increments) Drive voltage: 12V DC Current per phase: 800mA/phase Coil resistance: 15Ω ±10%/phase Number of phases: 2 Step angle: 18°/step Excitation: 1-2 phase excitation Pull-out thrust: 500g or more at 125pps Maximum response frequency: 1600pps or higher Maximum starting frequency: 1100pps or higher Insulation class: Class E Insulation strength: 100V AC for one second Insulation resistance: 50MΩ DC 500V Operating temperature: 0°C to +55°C Motor temperature rise: Up to 80°C Item size: 105 x 15mm / 4.1 x 0.6in Item weight: 46g / 1.6oz Note: The motor must be driven by a compatible driver and cannot be directly connected to power. Package includes: 1 x Motor with Linear Slide Contents listed above only; other items not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3cm.