Nema 17 Datasheet | Nema 17 Bipolar 45Ncm (64oz.in) 2A 42x42x40mm ...

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Connectors: Molex, Harwin, Tyco/AMP, JST etc.
Lead wires & cables: Special lengths, Protective hose
Shaft: Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow
Winding: Resistance, Inductance, Rated Current, etc.

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This is one of the most popular stepper motor in Nema 17 size, it with 1.8deg step and size 42x42x40mm, It has 4 wires with 1m cable and 2.54mm pitch connector, each phase draws 2.0A, with holding torque 45Ncm (64oz.in). This stepper motor is ideal for the RepRap Prusa, Mendel 90, Rostock and similar 3D printers, as well as CNC and robotics applications. Nema 17 datasheet is as the below.

Here is the updated version with a pluggable lead wire and smaller body. It's more suitable for your 3D printers: 17HS15-1504S-X1

Electrical Specification

Manufacturer Part Number: 17HS16-2004S1
Motor Type: Bipolar Stepper
Step Angle: 1.8 deg
Holding Torque: 45Ncm(64oz.in)
Rated Current/phase: 2A
Voltage: 2.2V
Phase Resistance: 1.1ohms
Inductance: 2.6mH ± 20%(1KHz)

Physical Specification

Frame Size: 42 x 42mm
Body Length: 40mm
Shaft Diameter: Φ5mm
Shaft Length: 23mm
D-cut Length: 21mm
Number of Leads: 4
Lead Length: 1000mm
Weight: 310g

Connection

A+	A-	B+	B-
Black	Green	Red	Blue

Resources

Full Nema 17 Datasheet: 17HS16-2004S1.pdf
Torque Curve: 17HS16-2004S1 Torque Curve.pdf

Electrical Specification
Bipolar/Unipolar	Bipolar
Holding Torque(Ncm)	45
Holding Torque(oz.in)	64
Inductance(mH)	2.6
Phase Resistance(ohm)	1.1
Rated Current(A)	2
Step Angle(°)	1.8
Physical Specification
Body Length(mm)	40
Frame Size(mm)	42x42
Single Shaft/Dual Shaft	Single Shaft
Shaft Type	D-Cut
Shaft Diameter(mm)	5
Shaft Length(mm)	23
No. of Lead	4
Lead Length(mm)	1000
Weight(g)	300