Oriental Motor

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

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Ideal for bi-directional operation, KII Series Reversible motors offer higher strength gears that maximize motor performance and extend the rated life, with ease of use wiring and mounting, all at affordable prices.
  • 15 W (1/50 HP)
  • 2.76 in. (70 mm) Frame Size
  • Rated Torque
    • Round Shaft = 13.3 oz-in (90 mN·m)
    • Parallel Shaft Gear = 3.7 ~ 88 lb-in (0.42 ~ 10 N·m)
  • Lead Wire Type
  • Electromagnetic Brake available
AC Motor
Unit of Measure
Items AC Motor
3RK15UA-5A
15 W (1/50 HP) Single-Phase 110/115 VAC AC Gear Motor (5:1 Gear Ratio)
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 AC Motor
3RK15UA-6A
15 W (1/50 HP) Single-Phase 110/115 VAC AC Gear Motor (6:1 Gear Ratio)
Web Price Request Quote
 AC Motor
3RK15UA-7.5A
15 W (1/50 HP) Single-Phase 110/115 VAC AC Gear Motor (7.5:1 Gear Ratio)
Web Price Request Quote
 AC Motor
3RK15UA-9A
15 W (1/50 HP) Single-Phase 110/115 VAC AC Gear Motor (9:1 Gear Ratio)
Web Price Request Quote
 AC Motor
3RK15UA-12.5A
15 W (1/50 HP) Single-Phase 110/115 VAC AC Gear Motor (12.5:1 Gear Ratio)
Web Price Request Quote
Frame Size - 2.76 in
Output Power - 15 W (1/50 HP)
Voltage (VAC) - Single-Phase 110/115 VAC
Frequency (Hz) - 60
Current - 0.38 A
Type - Lead Wire
Electromagnetic Brake - Not Equipped
Shaft/Gear Type - Parallel Shaft Gearhead
Gear Ratio (X:1) - 5 :1 - 6 :1 - 7.5 :1 - 9 :1 - 12.5 :1
Output Shaft Diameter - 1/2 in.
Rated Torque - 3.7 lb-in   - 4.5 lb-in   - 5.5 lb-in   - 6.7 lb-in   - 9.7 lb-in  
Rated Speed (rpm) - 360 - 300 - 240 - 200 - 144
Permissible Load Inertia - 109 oz-in²When performing instantaneous stop = 19.1 oz-in² - 153 oz-in²When performing instantaneous stop = 28 oz-in² - 250 oz-in²When performing instantaneous stop = 43 oz-in² - 360 oz-in²When performing instantaneous stop = 62 oz-in² - 660 oz-in²When performing instantaneous stop = 120 oz-in²
Permissible Overhung Load - 0.39 in. from Output Shaft End = 45 lb0.79 in. from Output Shaft End = 67 lb
Permissible Thrust Load - 18 lb
Permissible Thrust Load -
RoHS Compliant - These products do not contain substances that exceed the regulation values in the RoHS Directive.
Safety Standards - UL CE