---
product_id: 45204713
title: "Greartisan DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox"
brand: "greartisan"
price: "R$317"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/45204713-greartisan-dc-12v-550rpm-gear-motor-high-torque-electric-micro
store_origin: BR
region: Brazil
---

# Adjustable Speed 12V Power High Torque Greartisan DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox

**Brand:** greartisan
**Price:** R$317
**Availability:** ✅ In Stock

## Summary

> 🔧 Gear Up for Greatness!

## Quick Answers

- **What is this?** Greartisan 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?** R$317 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/45204713-greartisan-dc-12v-550rpm-gear-motor-high-torque-electric-micro)

## 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

- • **Risk-Free Assurance:** 100% unconditional return service for your peace of mind.
- • **Unmatched Durability:** Crafted with all-metal gears for superior strength and longevity.
- • **Precision Engineering:** D-shaped output shaft made from high hardness steel ensures impact resistance.
- • **Versatile Performance:** Enjoy low noise operation with adjustable speed, capable of driving up to 15 kg.
- • **Power Boosting Technology:** Experience a 30% increase in power with our pure copper wire core rotor.

## Overview

The GreartisanDC 12V 550RPM Gear Motor is a high-torque electric micro speed reduction motor designed for durability and performance. Featuring all-metal gears, a pure copper wire core rotor for enhanced power, and a robust D-shaped output shaft, this motor is built to handle demanding tasks with low noise and adjustable speed capabilities. Backed by a reliable return policy, it's the perfect choice for professionals seeking quality and efficiency.

## Description

Greartisan DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox

## 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!

## Product Details

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

## Images

![Greartisan 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/611r7E3K3zL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## 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

## Frequently Bought Together

- Greartisan DC 12V 550RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Centric Output Shaft 37mm Diameter Gearbox
- Black 25mm DC Gear Motors Mounting Bracket, Iron Anti-Rust Gearbox L-Shape Fixed Seat, Gear Reduction Motor Holder
- Greartisan DC 12V 1000RPM Gear Motor High Torque Electric Micro Speed Reduction Geared Motor Eccentric Output Shaft 37mm Diameter Gearbox

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-28*