The items are USED and sold AS-IS, but were removed from service in a working condition. Below are the detail from the manufacturers page and I believe all products are current. Stepper Motor The HT34-490 two-phase stepper motor is designed for use with the STAC6 series of stepper drives (120 VAC input versions only) and is suitable for a wide range of motion control applications.
These motors have the round shafts extending out 7/8" (22.2 mm) and are .23" ( 6 mm) in diameter.The 4 mounting holes are 2 inches (50.8 mm) apart. I believe these are the high quality motors used on aircraft.Made in Japan. The 2TK3CA-A is an AC Torque Motor from Oriental Motor.
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