42BYGH47-401A 1.5A 0.55N Miniature 1.8 Degree 42 Stepper Motor for Carving Machine and 3D Printer
 
42 stepper motor / 1.5a 0.55n / 42bygh47-401a 1.8 degree/engraver /3D printer
Two-phase stepper motor, 42 steps. Size: 42.5 * 42.5 * 70 mm
RepRap 42 two - phase four - wire stepping motor - the most important power component of 3D printers
In a nutshell, a stepping motor is a motor that USES current pulses to precisely control the torque. The current pulses are supplied by the driving unit of the stepping motor. A step is a current pulse, and each step is a fixed length, so the stepper motor is suitable for applications that require accurate positioning. There are two types of stepper motors: bipolar and unipolar. In principle, both types of RepRap are available.
 
Specification parameters:
Weight: 0.4 kg
Phase 2
Step Angle: 1.8 + / - 5% / step
Voltage: 12 v
Current: 1.2a /phase
Resistance: 10.0 + / - 10% Ω/phase
Inductance: 20 + / - 20 % MH/ phase
Lead style: AWG26 UL1007
4 leads
Maintain torque: 48n.cm
Braking torque: 2.6 n.c. m
Insulation cllass: B
Rotor torque: 68g. Cm2