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nema 17 series stepper motor, 42mm diameter, stepper angle1.8, phase current :0.18-3A, 2and4 phases, 4and6 lead wires - details see: https://www.machineto.com/nema-17-single-shaft-4-phase-stepper-motor-price-10239464

42HS nema17 series stepper moter , usually used in 3d printer

Items	Spec.
Step Angle	1.8 °
Step Angle Accuracy	±5%
Resistance Accuracy	±10%
Inductance Accuracy	±20%
Temperature Rise	80°C Max
Ambient Temperature	-20°C~+50°C
Insulation Resistance	100MΩ Min., 500VDC
Dielectric Strength	500VAC for one minute
Shaft Radial Play	0.02Max (450g-load)
Shaft Axial Play	0.08Max (450g-load)

Model	Phase No.	Voltage	Current	Inductance	Resistance	Holding Torque	Rotor Inertia	Weight	Length	Wire No.
		V	A	mh ±20%	Ω ±10%	kg.cm	g.cm ²	kg	mm
42HS30-0604A	2	4.4	0.6	6	7	1.2	32	0.14	30	4
42HS30-0804A	2	3.8	0.8	7.8	4.8	2.6	32	0.14	30	4
42HS30-1604A	2	2.08	1.6	0.9	1.3	1.5	32	0.14	30	4
42HS34-0226A	4	12	0.22	30	55	1.4	35	0.25	34	6
42HS34-0804A	2	5.2	0.8	4.6	6.5	2.3	35	0.25	34	4
42HS34-1704A	2	2.1	1.7	1.5	1.2	2.2	35	0.24	34	4
42HS34-2004A	2	1.4	2	1.1	0.7	2.5	35	0.25	34	4
42HS39-0404A	2	10.4	0.4	45	26	3.4	55	0.3	39	4
42HS39-0806A	4	6	0.8	7	7.5	3	55	0.3	39	6
42HS39-1206A	4	4	1.2	3.2	3	3	55	0.3	39	6
42HS39-1704A	2	2.6	1.7	2.3	1.5	4.2	55	0.3	39	4
42HS40-1006A	4	5.7	1	5.5	6	3.3	55	0.3	40	6
42HS40-1506A	4	3	1.5	2	2	2.7	55	0.3	40	6
42HS40-3004A	2	1.35	3	0.6	0.45	3.6	55	0.3	40	4
42HS44-0304A	2	25	0.3	148	83	5	60	0.34	44	4
42HS44-0804A	2	4.8	0.8	15	6	4.8	60	0.34	44	4
42HS44-1204A	2	3.84	1.2	7.6	3.2	4.5	60	0.24	44	4
42HS48-0186A	4	21	0.18	90	120	3	76	0.34	48	6
42HS48-0304A	2	18	0.3	98	54	5	76	0.35	48	4
42HS48-0606B	4	12	0.6	13.5	19.5	3.8	76	0.34	48	6
42HS48-1006B	4	4.3	1	4.2	4.3	3.2	76	0.34	48	6
42HS48-1504A	2	4	1.5	5.5	2.6	6	76	0.35	48	4
42HS48-2004A	2	3	2	3	1.5	4.3	76	0.34	48	4
42HS48-3004A	2	1.5	3	0.8	0.5	4.2	76	0.34	48	4
42HS52-0504A	2	8.2	0.5	40	16.5	6	80	0.45	52	4
42HS52-1006B	4	5.8	1	6.8	5.8	5.2	80	0.45	52	6
42HS52-1504A	2	4.5	1.5	6	3	6.8	80	0.45	52	4
42HS58-2104A	2	2	2.1	2.4	0.95	6	80	0.55	58	4