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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DC 12V 30RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Eccentric Output Shaft 37mm Diameter Gearbox

Product ID: 445364224

Details

Brand
Greartisan
Horsepower
30 Watts
Model name
gear
Speed
30 RPM
Voltage
12 Volts

🔄Bidirectional rotation with torque control

🔋30% power boost with pure copper rotor

⚙️All-metal gears for max durability

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€ 42.43

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Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Gear up with Greartisan: Power, Precision, and Performance in One Compact Motor!

VERSATILE COMPACT - Compact 37mm gearbox fits seamlessly into any DIY or professional setup—from vending machines to robotics.
UNMATCHED DURABILITY - All-metal gears engineered for high abrasion and heat resistance, ensuring your projects run longer without a hitch.
RISK FREE RELIABILITY - Backed by a 100% unconditional return guarantee—because confidence in your gear motor is non-negotiable.
POWER PACKED PERFORMANCE - Pure copper wire core rotor delivers an instant 30% power surge—because your motor deserves to outperform.
PRECISION TORQUE CONTROL - 30 RPM speed with high torque (12 Kg.cm) lets you drive loads up to 15kg smoothly and quietly.

The Greartisan DC 12V 30RPM Gear Motor features a robust all-metal gear system and a pure copper wire rotor that boosts power by 30%. With a durable D-shaped output shaft and a compact 37mm gearbox, it delivers high torque (12 Kg.cm) at low noise, ideal for precise, slow-speed applications. Perfect for hobbyists and professionals alike, it supports bidirectional rotation and comes with a 100% satisfaction guarantee.

Specifications

ASIN	B071GTTX4D
Best Sellers Rank	8,245 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2 in Gearboxes, Gearheads & Speed Reducers
Brand	Greartisan
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (73)
Horsepower	30 Watts
Manufacturer	Greartisan
Material	Copper
Model Name	gear
Model Number	Greartisan
Speed	30 RPM
UPC	766330626944
Unit Count	1.0 count
Voltage	12 Volts

Reviews

A**S

Built two automatic ice fishing rod jigging machines. After a season of use, one of the gearboxes got louder. It is very easy to remove the two screws on the shaft end to grease the gears. They are indeed all metal construction - no plastic gears.

8.03.2026

M**S

Ich habe den Greartisan DC 12V 30RPM Getriebemotor für ein selbstgebautes Drehspieß-Projekt gesucht und bin mehr als zufrieden. Der Motor hat meine Erwartungen nicht nur erfüllt, sondern übertroffen. Für den Preis bekommt man hier eine erstaunliche Qualität und Leistung. Was ihn so besonders macht: · Perfekte Drehzahl und Kraft: Die angegebenen 30 Umdrehungen pro Minute (RPM) sind genau das, was ich für einen gleichmäßigen, langsamen Antrieb benötigt habe. Das Getriebe sorgt für ein hohes Drehmoment – der Motor läuft auch unter leichter Last (wie einem kleinen Grillspieß) absolut ruhig und zuverlässig, ohne zu stocken. · Robuste und kompakte Bauweise: Das Metall-Getriebegehäuse fühlt sich sehr wertig und stabil an. Die gesamte Verarbeitung macht einen hochwertigen Eindruck. Trotz der Kraft ist der Motor erfreulich kompakt und lässt sich gut in verschiedene Konstruktionen integrieren. · Vielseitige Anschlussmöglichkeiten: Der mitgelieferte, lange Anschlussdraht mit farbiger Kennung (rot/schwarz) macht die Verkabelung sehr einfach. Man kann ihn direkt mit einer 12V-Stromquelle (wie einem Netzteil oder einer Autobatterie) verbinden oder in eine Schaltung integrieren. · Breites Anwendungsspektrum: Dieser Motor ist ein echter Allrounder für Hobbybastler. Ob für Drehspieße, Drehteller, langsame Förderbänder, Jalousieantriebe, Modellbau oder kreative Arduino/Raspberry Pi-Projekte – die 30 RPM sind für viele langsame und kraftvolle Anwendungen ideal. · Unschlagbares Preis-Leistungs-Verhältnis: Für das, was man bekommt, ist der Preis mehr als fair. Man erhält einen leistungsstarken, langlebigen Getriebemotor, für den man bei anderen Marken deutlich mehr zahlen müsste. Fazit: Der Greartisan DC 12V 30RPM Getriebemotor ist ein hervorragendes Bauteil für alle Bastler und Tüftler. Er ist kraftvoll, präzise, gut verarbeitet und zu einem fantastischen Preis zu haben. Wenn Sie einen zuverlässigen und vielseitigen Antrieb für ein DIY-Projekt suchen, liegen Sie mit diesem Motor genau richtig. Absolute Kaufempfehlung!

14.01.2026

J**L

The size of the motor was perfect to create a rotation device for a roaster. Low noise, just the right amount of power as I wanted to spin slow. It worked as intended.

4.12.2024

T**E

Much louder than a competitor's offering that starts with a U. Works well though. I have it on a proximity sensor so it doesn't run 100% duty cycle.

7.03.2019

D**I

Good torque. It's reversible, and will give lower speed at lower voltage.

24.06.2024

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