NEMA 17 Stepper Gear Motor

Electrical Specification

High‑Precision NEMA 17 Planetary Gearbox Stepper Motor

This planetary gearbox stepper motor offers excellent performance with high precision, high efficiency and wide speed ratio. It features long life, low inertia, low vibration, low noise and low temperature rise. With a compact, neat design, it is easy to install and delivers accurate positioning, ideal for precision motion applications.

Motor Electrical Specification

Series Model	Step Angle ( o )	L(mm)	Rated Current (A)	Phase Resistance (Ω)	Phase Inductance (mH)	Holding Torque(N.cm)	Lead Wire (NO.)	Motor Weight ( g)
HP421-04023	1.8	43	2.3	0.9	1.3	40	4	280
HP421-05023	1.8	51	2.3	1.1	1.5	50	4	350
HP421-07023	1.8	63	2.3	1.4	2.5	70	4	480
HP421-08023	1.8	66	2.3	1.5	2.2	80	4	500

Gearbox Specification

Ratio	3.71	5.18	6.75	14	19	27	35	46	51	71	100	139	181	236	307
Reducer Series	1			2					3
Length(mm)	25.6			34					42
Rated Torque(N.m)	0.3			1.2					2.5
Permissible Torque(Max)(N.m)	1			3.5					7.5
Efficiency(%)	90%			81%					73%
Weight(g)	182			191					230
We can manufacture products according to customer’s requirements

Mechanical Dimensions

Custom Option

Custom Shaft
Round, D-Cut, Cross drilled, Key-Way, Thread or Hollow

Stepper Motor with Encoder

Encoder is customized for customer

Stepper Geared Motor
Planetary Gearbox Stepper Motor
Spur Gearbox Stepper Motor

Connector
Molex, Harwin, Tyco/AMP, JST etc.

Leadwires and Cables

Special length, Protective hose

Download

{"json":"[{\"downloadUrl\":\"//5lrorwxhmnnniik.leadongcdn.com/HP421-aidjoBppKkrRikSolkrnolli.pdf?dp=1\",\"encodeFileId\":\"gPUfpQsrhJAE\",\"fileId\":6322904,\"fileName\":\"HP421.pdf\",\"fileType\":\"pdf\",\"photoUrlNormal\":\"//5krorwxhmnnnrik.leadongcdn.com/static/assets/widget/images/downloadNew/pdf.svg\",\"pname\":\"HP421.pdf\",\"name\":\"HP421.pdf\"}]","type":"1"}