This NEMA17 geared stepper motor provides massive torque, 9 Kg-cm (or, 88 N-cm, 125 Oz/in), to drive your extruder. The compact design enables a neat fit onto your 3D printer without taking too much space. The connection wires are detachable from the motor for easier wire management.
Model: Kysan 1040222
Rated voltage: 2.6 V
Number of phase: 2
Current / phase: 1 A
Resistance / phase: 2.6 Ohms +/- 10%
Inductance / phase: 3.2 Mh +/- 20%
Insulation resistance: 100 Mega-ohms (500 VDC)
Gear ratio: 5.2 : 1
Length of connection wires: 1,830 mm (72 in)
Shaft diameter: 8 mm (0.315 in) flatted
Update [June 23, 2014]: The dimension and pin-out information is added in the second graph.