How much weight can this motor lift if it was used for a "mini" garage door opener? Door would be 50"x30". Approximately 30lbs

The maximum torque this motor could produce is approximately 0.67 lb-in peak at close to stall. The stated speed 120 RPM is assumed to be a no-load value. Using a more reasonable operating 60% of these values, the motor may approximately produce 0.4 lb-in at 90 RPM. The power available from this unit is approximately .426 watts. You want to lift a 30 lb door 30 (?) inches in an assumed 10 seconds which is approximately 10 watts. So what you are asking is will a 0.43 watt motor power a 10 watt requirement. The answer is no. (The preceding power requirement calculation does not address any added wattage requirement due to friction or drive efficiency losses which would increase the "no" to a "HELL NO")

Can I use a 12V 1A adapter with this motor?

Depends on your application. I got 20 RPM motor: no load at 12V ~100mA. No load start-up 2A. I think stall test was nearly 4A.

Do these leak grease from the gear box?

Nope no sign of any grease leaking out yet

If this motor is used as a wind turbine generator, will it output 12v at 200rpm?

I used mine as a hand crank phone charger that charged a battery pack. I worked great and the output will vary based on your load and speed, so it will probably have a lower voltage than 12v at 200RPM. You'll want to put it through a full bridge rectifier with a capacitor in parallel to produce a DC voltage, however the diodes and capacitor will also drop your voltage. The battery pack I was using was only around 6 to 7 volts DC, also the gearing in the motor is really high so for a wind turbine you would probably have to help start the blades to get them to spin.

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⚡ Gear up with Greartisan: Power, Precision, and Performance in Every Turn!

PRECISION CONTROL - D-shaped hardened steel output shaft offers superior toughness and impact resistance, extending motor lifespan.
UNMATCHED DURABILITY - All-metal gears engineered for high-temperature and abrasion resistance, ensuring your motor withstands the toughest workloads.
RISK FREE RELIABILITY - Backed by a 100% unconditional return guarantee and customizable voltage/RPM options to fit your exact needs.
POWER PACKED PERFORMANCE - Precision-wound pure copper wire rotor delivers an instant 30% increase in power—because efficiency is everything.
VERSATILE SPEED MANAGEMENT - Adjustable positive-negative rotation with low noise and high torque—capable of driving loads up to 15kg at 10 RPM.

The Greartisan DC 12V 5RPM Gear Motor features a robust all-metal gear system and a pure copper wire core rotor that boosts power by 30%. Its hardened D-shaped output shaft ensures durability and impact resistance, while offering adjustable bidirectional rotation with high torque and low noise. Designed for demanding applications, this 37mm diameter gearbox motor supports loads up to 15kg and comes with a 100% satisfaction guarantee.

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Manufacturer	Greartisan
Part number	Greartisan
Item Weight	232 g
Item model number	Greartisan
Size	12 Volt
Color	5 RPM
Material	Metal
Voltage	12 Volts
Item Package Quantity	1
Speed	5 RPM
Cutting Diameter	37 Millimeters
Batteries Included?	No
Batteries Required?	No
Item diameter	37 Millimeters

Greartisan DC 12V 5RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Eccentric Output Shaft 37mm Diameter Gearbox

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