Sunday, October 27, 2013
Specifications of a Stepper Motor
An electromechanical device, a stepper motor converts electrical pulses into mechanical movements. The motors spindle rotates in step increments when electrical pulses are applied in proper sequence. The speed of the motor directly relates to the frequency of these pulses.
Benefits
Step motors respond well to starting, stopping and reversing. With no contact brushes, step motors are extremely dependable and run until the bearings wear out. Step motors can achieve a wide range of rotation speeds due to speed being directly linked to the frequency of electrical impulses.
Specifications
A size 23 stepper motor has a shaft run-out of .001 inches. Radial play is a max .001 inch per one pound of force, while end play is .001 inches per 9 lbs. of force. Perpendicularity measures at .003 inches, with concentricity measuring at .002 inches. Operating temperature ranges from -4 degrees Fahrenheit to 122 degrees Fahrenheit with a insulation class of 266 degrees Fahrenheit. Stepper motors should be fitted with an American wire gauge (AWG) standard lead wire gauge of 26. The engine has a max radial load of 15 lbs. and max thrust load of 25 lbs..
Types
Size 11, 14, 17, HT17, HT23, 34, HT34 and 42 stepper motors have slight variations on their specifications than to the size 23 motor.
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