Dealikee 3D Printer Motors, Nema 17 Stepper Motor 42 Motor 1.8 Stepper Angle 42BYGH 1.7A (17HS4401) motor 4-Lead W/1m Cable for Extruder Reprap Makerbot CNC Creality

• HIGH TORQUE: Adopting high quality motor steel material, MELIFE 3D printer stepper motor kit is provided with high torque (0.3 Nm/43 OZ-in), low self-inductance reactance, responsive and can avoid system error.
• DURABLE & TOUGH: Our mini motor uses high hardness metal, tough and durable. And the matte texture in the side wall can increase friction.
• Lower Heat: Selected new materials gets a lower resistance value when compared with motors of the same thickness and the same torque, this makes huge improvement for the thermal conductivity performance of the motor, thus greatly reduces the temperature rise of the motor.
• Low Noise & Smooth: Improved manufacturing processes enable all components of MELIFE' stepper motors to achieve better matching precision and more stable internal structures. This reduces vibration and noise effectively when the motor operates.
• WIDE APPLICATION: This small motors can be used in various area, such as stage lighting; laser engraving; textile machinery; medical equipment; placement machine; non-standard equipment; 3D printer; automation equipment, and etc..

General Specification: Step angle Accuracy: ± 5%(full step,not load) Resistance Accuracy: ± 10% Inductance Accuracy: ± 20% Temperature Rise: 80deg Max(rated current,2 phase on) Ambient Temperature: -20deg ~+50deg Insulation Resistance:100M Min, 500VDC Insultion Strength: 500VAC each minute Product Parameters: Product name: Bipolar 40 Stepper Motor Holding torque: 0.3 Nm/ 43 OZ-in Working voltage: DC 12-24V Rated current: 1.7A Resistance: 1.65 ohm Inductance: 4mH Rotor inertia: 54gcm2/ 0.28oz-in2 Weight: 0.32kg Length: 40mm/ 1.57 inch Pins: 4 Step angle: 1.8° Motor frame size: 40*40mm Wiring: Red: (A+); Blue: (A-); Green: (B+); Black: (B-) Application: Stage lighting; laser engraving; textile machinery; medical equipment; placement machine; non-standard equipment; 3D printer; automation equipment Warm Tips: Please note that this motor cannot be connected to the power supply directly. It should be connected to a constant current driver, otherwise, it will destroy the motor. Please ensure that the output current is not higher than the rated current of the motor (1.7A) or exceed the working voltage range of the motor (DC 12-24V). Product Includes: 1* 40 Stepper Motor 1* Dupont Connect Cable