NEMA 16 Bipolar 0.9deg 0.17Nm (23.6oz.in) 0.4A 12V 39x39x31mm 4 Wires Stepper Motor

Technical Parameter

Item	Specifications
Step Angle Accuracy	±5%
Resistance Accuracy	±10%
Inductance Accuracy	±20%
Temperature Rise	80K Max.
Ambient Temperature	-20℃~+50℃
Insulation Resistance	100MΩMin.@ 500VDC
Dielectric strength	One minute@500VAC∙5mA Max.
Shaft Radial Play	0.06Max.@450g
Shaft Axial Play	0.08Max.@450g

 

Technical Specification

Model No.	Polar	Rated Voltage	Current/ Phase	Resistance/ Phase	Inductance/ Phase	Holding Torque		# of Leads	Rotor inertia	Weight	Length
		V	A	Ω	mH	oz-in	kgf · cm		g∙ cm2	kg	mm
39H031HM-0404	Bipolar	12	0.4	30	50	23.6	1.7	4	18	0.17	31

 

 

Pull Out Torque Curve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAQ

Q: What is your shipping method?

A: We can deliver the products by air, express, and sea, and we could choose the most suitable transportation way for you according to your need.

 

Q: Could you offer assembly service?

A: Yes, we can provide assembly service upon your requirement.

 

Q: How do you deal with quality problems?

A: The warranty time of our products is one year. If meeting with any quality issues, we will arrange the international express immediately, to make sure the replacement parts are delivered as soon as possible.

 

Q: Can stepper motors be operated at high speeds without loss of performance?

A: Stepper motors have inherent limitations that can affect their performance at high speeds. As the speed of a stepper motor increases, several factors come into play. First, the motor's rotor inertia can become a limiting factor, causing difficulty in rapidly changing direction or achieving high accelerations. Second, the motor's inductance and electrical time constants can introduce delays in the response time, leading to reduced torque and accuracy. Additionally, at high speeds, the back EMF (electromotive force) generated by the motor can start to impact its performance, further reducing torque. Consequently, operating stepper motors at very high speeds may result in a loss of performance, decreased torque output, and diminished positional accuracy. If high speeds are a requirement, alternative motor types like servo motors might be more suitable.

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