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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Greartisan DC 24V 20RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Eccentric Output Shaft 37mm Diameter Gearbox

Product ID: 298293530

Details

Brand
Greartisan
Material
Alloy Steel
Model Name
gear
Speed
20 RPM
Voltage
24 Volts

🔄Bidirectional rotation with torque control

🔋30% power boost with pure copper rotor

⚙️All-metal gears for max durability

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913 L

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Description

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

BUILT TO ENDURE - D-shaped hardened steel output shaft enhances impact resistance and extends motor lifespan for relentless reliability.
VERSATILE READY - Compact 37mm gearbox fits seamlessly into vending machines, robotics, and automation projects—upgrade your gear game now.
UNMATCHED DURABILITY - All-metal gears engineered for high abrasion and heat resistance, ensuring your motor outlasts the competition.
POWER PACKED PERFORMANCE - Precision-wound pure copper wire rotor delivers an instant 30% increase in power—because efficiency is everything.
PRECISION TORQUE CONTROL - Smooth positive-negative rotation with a robust 10Kg.cm torque at 20RPM, perfect for demanding applications.

The Greartisan DC 24V 20RPM Gear Motor features a rugged all-metal gear system and a pure copper wire core rotor that boosts power by 30%. Its D-shaped hardened steel output shaft ensures durability and impact resistance, while the motor supports bidirectional rotation with a rated torque of 10Kg.cm. Compact and versatile, this motor is ideal for automation, vending machines, and precision equipment, delivering reliable, low-noise operation with a long service life.

Specifications

ASIN	B08FBBXZ67
Best Sellers Rank	#45,766 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #40 in Electric Motors
Brand Name	Greartisan
Customer Reviews	4.3 4.3 out of 5 stars (7)
Item Weight	8.1 Ounces
Manufacturer	Greartisan
Material Type	Alloy Steel
Model	Greartisan
Model Name	gear
Speed	20 RPM
UPC	192236424184
Voltage	24 Volts

Reviews

T**M

Great product

A+++

28.04.2025

A**J

el motor muy grande no lo pude colocar en su lugar el reductor si era el adecuado

22.05.2025

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913 L

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