Oriental Motor

ORIENTAL MOTOR U.S.A. Corp.
570 Alaska Avenue
Torrance, CA 90503
1-800-GO-VEXTA (468-3982)

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The UMK series provides high torque and low vibration. High resolution models are available.
  • Basic system
  • Low vibration
  • Resolution - 1.8º or 0.9º
  • Singe-phase 100-115 VAC
  • RoHS compliant
UMK_top.jpg
Unit of Measure
Items umk243-img.jpg
UMK243AA
Full/Half-step System (Single-Phase 100-115 VAC)
umk243-img.jpg
UMK243BA
Full/Half-step System (Single-Phase 100-115 VAC)
umk243-img.jpg
UMK243MAA
Full/Half-step System (Single-Phase 100-115 VAC)
umk243-img.jpg
UMK243MBA
Full/Half-step System (Single-Phase 100-115 VAC)
umk243-img.jpg
UMK244AA
Full/Half-step System (Single-Phase 100-115 VAC)
Speed-Torque Characteristics -
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Holding Torque - 22 oz-in - 22 oz-in - 22 oz-in - 22 oz-in - 36 oz-in
Frame Size - 1.65 in
Power Supply - Single-Phase 100-115 VAC
Type - Standard - Standard - High-Resolution - High-Resolution - Standard
Step Angle - 1.8 ° - 1.8 ° - 0.9 ° - 0.9 ° - 1.8 °
Shaft - Single - Double - Single - Double - Single
Rotor Inertia - 0.191 oz-in² - 0.191 oz-in² - 0.191 oz-in² - 0.191 oz-in² - 0.3 oz-in²
RoHS Compliant - Yes
Continuous Duty - No
Closed Loop System - No
Built-in Controller - No
Smooth Drive Function - No