I have a brand new still in the original box Oriental GU series Gear motor.  Feel free to ask any questions you may have.  This motor costs over $300 new, below is the information from the Oriental Website

These motors are coupled to an AC electromagnetic brake which is activated when power is not applied. When the power source is turned off, the motor stops instantaneously and holds the load.

Specifications

Product Line

Oriental Motor ®

Motor Type

Electromagnetic Brake - Induction

Motor Frame Size

 View 
3.54 in. sq.

Output Power

90 W (1/8 HP)

Voltage (VAC)

Three-Phase 200/220/230 VAC

Frequency (Hz)

60
50

Shaft/Gear Type

Pinion Shaft for a Gearhead (sold separately)

Type

Lead Wire

Rated Torque (lb-in)

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6 [200 VAC, 50 Hz]
5 [60 Hz]

Rated Speed (rpm)

1300 [200 VAC, 50 Hz]
1550 [60 Hz]

RoHS Compliant

 Question? 
No

Safety Standards

 Question? 
UL
CSA
EN
CE

CE Marking

 Question? 
Low Voltage Directives

Insulation Resistance

100 M Ω or more when 500 VDC megger is applied between the windings and the frame after rated motor operation under normal ambient temperature and humidity.

Dielectric Strength

Sufficient to withstand 1.5 kV at 50 Hz or 60 Hz applied between the windings and the frame for 1 minute after rated motor operation under normal ambient temperature and humidity.

Temperature Rise

Temperature rise of windings are 176°F (80°C) or less measured by the resistance change method after rated motor operation with connection to gearhead.

Insulation Class

Class B (266°F [130°C])

Overheat Protection

Built-in thermal protector (Automatic return type). Operating temperature, open: 266°F ± 9°F (130°C ± 5°C) close: 179.6°F ± 27°F (82°C ± 15°C)

Ambient Temperature Range

Three-phase 200 VAC: 14°F ~ 122°F (-10°C ~ 50°C) (nonfreezing)
Other voltage: 14°F ~ 104°F (-10°C ~ 40°C) (nonfreezing)

Ambient Humidity

85% maximum (noncondensing)

Degree of Protection

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IP40