---
product_id: 411190512
title: "Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox"
brand: "greartisan"
price: "63.56 DT"
currency: TND
in_stock: false
reviews_count: 5
url: https://www.desertcart.tn/products/411190512-greartisan-metal-dc-12v-550rpm-gear-motor-high-torque-electric
store_origin: TN
region: Tunisia
---

# Positive-negative rotation with speed control Pure copper wire rotor boosts power +30% All-metal gears for max durability Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox

**Brand:** greartisan
**Price:** 63.56 DT
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Gear up your projects with power, precision, and durability!

## Quick Answers

- **What is this?** Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox by greartisan
- **How much does it cost?** 63.56 DT with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/411190512-greartisan-metal-dc-12v-550rpm-gear-motor-high-torque-electric)

## Best For

- greartisan enthusiasts

## Why This Product

- Trusted greartisan brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Rotation Control:** Seamlessly switch directions and fine-tune speed reduction for smooth, quiet, high-torque performance.
- • **Built to Last with All-Metal Gears:** Engineered for high-temp & abrasion resistance, ensuring your motor withstands the toughest workloads.
- • **Power Surge from Pure Copper Rotor:** Precision winding technology delivers a 30% instant power boost—because efficiency is everything.
- • **D-Shaped Output Shaft for Ultimate Durability:** Crafted from hardened steel to resist impact and extend motor lifespan—reliability you can count on.
- • **Plug & Play Confidence with Guaranteed Quality:** Backed by 100% unconditional return service, plus customizable voltage and RPM options to fit your project.

## Overview

The Greartisan Metal DC 12V 550RPM Gear Motor features a robust all-metal gearbox and a pure copper wire rotor that boosts power by 30%. Its hardened D-shaped output shaft ensures long-lasting durability, while positive-negative rotation allows flexible speed control with low noise and high torque. Ideal for applications from vending machines to automatic doors, this compact motor combines precision engineering with reliable performance, backed by a 100% satisfaction guarantee.

## Description

Specifications: Rated Voltage: 12V Speed: 550RPM Material: Metal Rated Torque: 0.7Kg.cm Reduction Ratio: 1:9 Rated Current: 0.5A D Shaped Output Shaft Size: 6*14mm (0.24" x 0.55") (D*L) Gearbox Size: 37 x 22.5mm (1.46" x 0.89") (D*L) Motor Size: 36.2 x 33.3mm (1.43" x 1.31") (D*L) Mounting Hole Size: M3 (not included) Application: Vending equipments, pan camera, slot machine, money detector, coin refund devices, automatic doors, peritoneal machine, toys motor etc. Packages: - 1 x DC Geared Motor PLEASE NOTE: 1. Use tolerance: Pay attention to the use of voltage and current range, otherwise the motor performance and motor life will decline. 2. Handling motors: Gently, as far as possible the use of motor shell part. 3. Motor wiring: Red lead to the positive electrode, black lead to the negative pole, if reversed, the motor rotation in the opposite direction. 4. Overload: As far as possible within the specified load range, prohibit motor blocking or close to the stall state for too long time to runs. Otherwise, the motor will burn out. 5. Motor storage: -- Storage temperature: 0℃ - 40℃; -- Storage humidity: 15% -90% RH; -- Avoid placing in high temperature, high humidity and corrosive gases. 6. Motor use temperature: 0℃ - 70℃

Review: Perfetto per fare aprire e chiudere una porta da esterno con un telecomando e messo fine corsa in apertura e chiusura, lo consiglio vivamente .
Review: The motor arrived quickly in good condition . It is very quite and works well . The only issue I had was I was not able to lower the speed with a motor speed controller. Over all it is worth the money

## Features

- 【ALL-METAL GEARS】: High-temperature resistance, high abrasion resistance, strong load capacity, sturdy and durable, effectively protect the gear box motor body.
- 【PURE COPPER WIRE CORE ROTOR】: With precision winding technology, the geared motor power instant increased by 30%.
- 【D SHAPED OUTPUT SHAFT】: Using high hardness steel, good toughness, impact resistance, the quality of the bearing and the service life of the gear motor are improved, extremely durable.
- 【POSITIVE-NEGATIVE ROTATION】: You also can adjust the speed, but the motor speed can only be reduced, can not be raised. Low noise and high torque, such as 10rpm can drive 15 kilograms.
- 【RELIABLE GURANTEE】: Any quality issues, we promise 100% unconditional return service. If you need other voltage and rpm, please feel free to contact us!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072R5G5GR |
| Are batteries included? | No |
| Best Sellers Rank | #294,694 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #62 in Car Motors |
| Brand | Greartisan |
| Colour | 550 RPM |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,521) |
| Date First Available | 21 December 2017 |
| Horsepower | 550 Watts |
| Item Weight | 200 g |
| Item model number | Greartisan |
| Manufacturer | Greartisan |
| Material | Metal |
| Model Name | gear |
| Model number | Greartisan |
| Net Quantity | 1.0 Count |
| Product Dimensions | 37W x 37H Millimeters |
| Speed | 550 RPM |
| UPC | 766330626883 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** Greartisan
- **Horsepower:** 550 Watts
- **Model Name:** gear
- **Speed:** 550 RPM
- **Voltage:** 12 Volts

## Images

![Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox - Image 1](https://m.media-amazon.com/images/I/41-qQDWqspL.jpg)
![Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox - Image 2](https://m.media-amazon.com/images/I/41JAUs95VGL.jpg)
![Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox - Image 3](https://m.media-amazon.com/images/I/41REemxOpHL.jpg)
![Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox - Image 4](https://m.media-amazon.com/images/I/41Z6ru+wWIL.jpg)
![Greartisan Metal DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox - Image 5](https://m.media-amazon.com/images/I/41kWDOUBD3L.jpg)

## Questions & Answers

**Q: So if I have an average rpm of 100 rpm and the rates torque is .45 kgcm, does that mean this has a power output of 4000 Watts?**
A: I know this answer is coming to you 3 years too late - and you probably figured this all out. Just in case - here is how you can calculate the power from the torque and RPM. A couple of quick notes: Torque is force times length - kg is not a force but a mass. If the "torque" is given in kg*cm - then this is not a proper torque number. It should be in Newton*cm. Newton is the unit for force and kg for mass. The force a mass experiences here on earth is the mass multiplied by the earth's acceleration of the mass in the earth's gravity. This acceleration is 9.81 m/s/s (meters per seconds squared). This unit is the same as N/kg (not that readily visible - but for now we'll just accept that as correct). Now we can calculate the proper torque by multiplying the two numbers: 4.5kg*cm * 9.81 N/kg = 44.2 N*cm. Power is work done per time - work, energy and torque are identical units of measure - force times length - the continuously delivered torque is the same as the work done by the motor. However, for the power to be correct we have to express work in N*m (SI units) - not N*cm. So we have translate N*cm into N*m. 100 cm = 1 m or 1cm = 0.01 m. We can just simply replace the cm with 0.01m and well get the torque (work) in N*m - 4.42N* 0.01m = 0.442 N*m. Next: power is Nm/s in SI units - that means we have to express 100 rpm in rps (revolutions per second = rev/sec). 1 min = 60 seconds. 
100 rpm = 100 revs per 60 secs = 100/60 rps = 1.7 rps. Now we can calculate the power in N*m/s: 0.442N*m * 1.7 rps = 0.74N * m / s = 0.74W of mechanical power - which is even less power.  Of course that's only correct if the 4.5kgcm number is correct for the motor. Some of the suggestions were to use the electrical power of the motor to estimate the mechanical output power. That too is a legit approach - however, that power setting given must be under the same conditions for which the mechanical output was given. E.g. the motor must run at 100 rpm and deliver the torque given - only then the current draw by the motor and the voltage accross the motor can be used to calculate the approximate mechanical power. For example - if the motor draws 1A at 12V when stalled out (motor is slowed down to a stop), then this is not the same condition as running the motor at 100 rpm. Sometimes the specifications given for those products can be a bit questionable.

**Q: Can this fit into a 1/4” metal rod? With a shaft collar or something?**
A: If you are widening a coupler and you can, use a drill press or milling machine.  Be sure the setup is as rigid as possible.  Use a "reamer" 1/4" in diameter if you can get one.  They are special purpose tooling but get used all the time for this exact job.  They cost a few dollars. Use very low speed or even turn the chuck by hand.  Do not use a hand dill at full speed with a twist bit.  I would rather use 400 grit sand paper or fine abrasive padding than any sort of standard drill and bit.

**Q: How many rotations does this motor make a minute**
A: As stated on the label.... 100 revolutions per minute (rpm)

**Q: Is this brushed or brushless?**
A: this is a brushed motor

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***. on 27 May 2025*

Perfetto per fare aprire e chiudere una porta da esterno con un telecomando e messo fine corsa in apertura e chiusura, lo consiglio vivamente .

### ⭐⭐⭐⭐ Review
*by A***A on 16 October 2022*

The motor arrived quickly in good condition . It is very quite and works well . The only issue I had was I was not able to lower the speed with a motor speed controller. Over all it is worth the money

### ⭐⭐⭐⭐⭐ Review
*by C***. on 28 May 2025*

Bon moteur bonne finition fait pour des utilisations de comptage guidage. Je l'utilise en bobineuse pour micro et sa fonctionne très bien.

## Frequently Bought Together

- Greartisan DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-30*