Product: Nema 17 Stepper Motor, DROK 40mm High Torque Bipolar DC Step Motor Kit, 0.46Nm Low Noise 42 2-Phrase Universal Electric Motor DC motor for 3D Printer Laser Engraving
Brand: DROK
Product Parameters: 
Product name: Bipolar 42 Stepper Motor 
Holding torque: 0.46 Nm/ 65 oz-in 
Working voltage: DC 9-42V 
Rated current: 1.7A 
Resistance: 2.1 ohm 
Inductance: 4mH 
Rotor inertia: 55gcm2/ 0.30oz-in2 
Weight: 0.28kg 
Length: 39.5mm/ 1.56 inch 
Phrase: 2 
Step angle: 1.8° 
Motor frame size: 42*42mm 
 
Wiring: 
Black (A+); Green (A-); Red (B+); Blue (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 9-42V). 
 
Product Includes: 
1* 42 Stepper Motor
HIGH TORQUE: Adopting high quality motor steel material, DROK 3d printer stepper motor kit is provided with high torque (0.46 Nm/ 65 oz-in), low self-inductance reactance, responsive and can avoid system error.
LOW NOISE: The internal rotor of our anet anet a8 stepper motor kit is made with introduced German craftsmanship and there is rotor rubber covering the rotor, effectively reduce the noise.
DURABLE & TOUGH: Our mini motor uses high hardness metal, tough and durable. And the matte texture in the side wall can increase friction.
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..
WHAT YOU GET: The package includes 1* 42 Stepper Motor.

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