NEMA 14 Bipolar 1.8deg 0.13Nm (18oz.in) 0.5A 8V 35x35x27mm 4 Wires Stepper Motor

Technical Parameter

Item	Specifications
Step Angle Accuracy	±5%
Resistance Accuracy	±10%
Inductance Accuracy	±20%
Temperature Rise	80K Max.
Ambient Temperature	-10℃~+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
35H027H-0504	Bipolar	V	A	Ω	mH	oz-in	kgf · cm	4	g∙ cm2	kg	mm
		8	0.5	16	19	18	1.3		10	0.13	27

 

Mechanical Dimension                                                                     

Pull Out Torque Curve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAQ

Q: What is step resolution in a stepper motor?

A: Step resolution refers to the number of steps per rotation or movement that a stepper motor is capable of making.

 

Q: What is the accuracy of the stepper motor, and is it cumulative?

A: The general stepper motor accuracy is 3-5% of the step angle, and it does not accumulate.

 

Q: Why does the torque of a stepper motor decrease as the speed rises?

A: When a stepper motor rotates, the inductance of each phase of the motor winding will form a reverse electric potential: the higher the frequency, the greater the reverse electric potential. Under its action, the motor decreases in phase current as the frequency (or speed) increases, which leads to a decrease in torque.

 

Q: What is holding torque?

A: Holding torque refers to the moment when the stepper motor is energized but does not rotate to lock the rotor. It is one of the most important parameters of a stepper motor.

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