Product: FYSETC 3D Printer Motors Nema 17 Stepper Motor 42-34 Motor 1.8 Stepper Angle 1A 2 Phase Body 4-Lead with 39.3inch Cable for 3D Printer Extruder CR-10 10S Ender 3/ Pro/V2 Ender 5
Brand: FYSETC
Specifications:

 Model Type: MS17HD4P484A-01

 Condition: 100% brand new

 Number of phase: 2

 Step angle: 1.8 degree

 Rated Voltage: 6 V DC

 Rated Current: 1A

 Holding Torque: 0.35 Nm Typ.(Two phase on/rated current)

 Phase Resistance: 5.75 ohm±10%(20℃）

 Phase Inductance: 8.4mH±20%(1kHz 1V rms)

 Rotor Inertia: 38 g.cm2

 Motor Weight: 0.22 kg

 Insulation Class: B(130℃)

 Connection:

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

What the steps/rev are for this stepper motor?
 please see the below formula: 
 E-Steps-per-MM=(Motor Steps * Micro-stepping*Gear Ratio) / (Hobb Diameter*π) 
 Standard motor steps / rev =200 
 Standard micro-stepping = 16x 
 Gear Ratio = 3 
 Hobb Diameter (Effective)= 7.3 

 Warning:

 Make sure the motor connect to a constant current or chopper drive controller before you test motor. 

 Connecting the motor directly to a power supply will destroy the motor.

 Package Included:
 1 x 42-34 Nema 17 Stepper Motor
 1 x 39.3 in Cable
Motor Model: 42-34 Nema 17, widely work for Most 3D Printer Ender 3 CR-10 CR-10s S5, i3 selece mini, printer etc.
High torque -Holding torque up to 0.35Nm. Low loss stators have better high speed performance.
Size: 42mm X 42mm X 34mm. 2 Phase 4 Wires, with 39.3 in/ 1 Meter cable.
100% brand new, ROHS and CE certified.
Package Includes: 1 x 42-34 Nema 17 Stepper Motor; 1 x 39.3 in Cable

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