---
product_id: 281323659
title: "RS-550s 18v (6v - 24v) DC Motor - Round Shaft High Power & Torque for DIY Electric/Electronic Projects, Drills, Robots, RC Vehicles, Remote Controlled Cars/Robot, Saw Repair/Replacement Engine & More"
brand: "protechtrader"
price: "244 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/281323659-rs-550s-18v-6v-24v-dc-motor-round-shaft-high
store_origin: PL
region: Poland
---

# 18V optimal power 3.175mm round shaft 20,000 RPM max speed RS-550s 18v (6v - 24v) DC Motor - Round Shaft High Power & Torque for DIY Electric/Electronic Projects, Drills, Robots, RC Vehicles, Remote Controlled Cars/Robot, Saw Repair/Replacement Engine & More

**Brand:** protechtrader
**Price:** 244 zł
**Availability:** ✅ In Stock

## Summary

> ⚙️ Power your passion with precision and speed!

## Quick Answers

- **What is this?** RS-550s 18v (6v - 24v) DC Motor - Round Shaft High Power & Torque for DIY Electric/Electronic Projects, Drills, Robots, RC Vehicles, Remote Controlled Cars/Robot, Saw Repair/Replacement Engine & More by protechtrader
- **How much does it cost?** 244 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/281323659-rs-550s-18v-6v-24v-dc-motor-round-shaft-high)

## Best For

- protechtrader enthusiasts

## Why This Product

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

## Key Features

- • **Precision Fit:** 3.175mm round shaft and compact 57mm length for seamless drill and tool replacements.
- • **Efficiency That Lasts:** 70% efficiency ensures longer runtime and less energy waste in your projects.
- • **Lightweight Durability:** Only 218g with alloy steel build—strong yet easy to integrate.
- • **Powerhouse Performance:** Delivers peak torque and speed at 18 volts for demanding DIY projects.
- • **Versatile Compatibility:** Ideal for drills, robots, RC vehicles, and custom electronics—upgrade your gear effortlessly.

## Overview

The RS-550s 18V brushed DC motor offers a compact, high-torque solution optimized for 12-18V operation, reaching speeds up to 20,000 RPM. With a durable alloy steel body and a 3.175mm round shaft, it fits many 3/8in drills and DIY robotics or RC applications. Weighing just 218g, it balances power and portability, delivering 70% efficiency for reliable, long-lasting performance in diverse electric and electronic projects.

## Description

RS-550s 18v (6v - 24v) DC Motor - Round Shaft High Power & Torque for DIY Electric/Electronic Projects, Drills, Robots, RC Vehicles, Remote Controlled Cars/Robot, Saw Repair/Replacement Engine & More

## Features

- RS-550s Brushed DC Motor Weight: ~7.7oz (218g) Body Length: 2.24in (57mm) Body Diameter: 1.46in (37.5mm)
- Operating Voltage: ~6v - 20v | Optimal Volt Range: 12v - 18v | 18 Volt Nominal (Optimal Power, Speed, and Torque near 18 volts)
- Shaft Length ~0.35 inch / ~11/32in or ~9mm | Diameter ~0.125 inch / 1/8in or ~3.175mm | Style: Round | Stall Current: ~85A | Efficiency: ~70% | No Load RPM: ~20000 rpms | RPM Peak Efficiency: ~17000 rpms
- Designed as a Power Tool Drill motor and may replace motors in many 3/8in drills and other cordless and outdoor tools. Popular choice for DIY Electronics and Robotics, PowerWheels, and some Gate Openers. Will not work or fit in all models, be sure to check your specific applications requirements before purchasing
- PLEASE NOTE: If your replacing a motor please be sure to verify the motor matches your dimensions and shaft length and diameter before purchasing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ProTechTrader |
| Part number | RS-550S-R |
| Item Weight | 218 g |
| Product Dimensions | 3.7 x 3.7 x 3.7 cm; 218.29 g |
| Item model number | RS-550 |
| Size | 550 Series |
| Style | 1.8in/3.175mm Round Shaft |
| Material | Alloy Steel |
| Shape | Round |
| Voltage | 12 Volts |
| Horsepower | 180 Watts |
| Item Package Quantity | 1 |
| Speed | 20000 RPM |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** ProTechTrader
- **Speed:** 20000 RPM
- **Voltage:** 12 Volts
- **Horsepower:** 180 Watts
- **Product dimensions:** 37W x 37H millimeters

## Images

![RS-550s 18v (6v - 24v) DC Motor - Round Shaft High Power & Torque for DIY Electric/Electronic Projects, Drills, Robots, RC Vehicles, Remote Controlled Cars/Robot, Saw Repair/Replacement Engine & More - Image 1](https://m.media-amazon.com/images/I/7197+CaSb-L.jpg)

## Questions & Answers

**Q: Can i use it to make a electric scooter carrying 50kg load**
A: I think so maybe if you're running 24 volts. I run 24 volts with my kids electric 4-wheelers and electric dirt bike.They are  5 and 3 thier Electric bikes fly with them on it. My wife weighs 120 she rides the electric four wheeler when my son gets mad back home.

**Q: how many turns is this motor**
A: James, this is a 33 turn motor.

**Q: Has anyone tried this in a kids power wheels running 18v tool battery**
A: Yes, I can say we have had multiple customer replace power wheels motors with these motors.   Depending on the model power wheels and you configuration this could be a drop in replacement.  You will need to be sure you have no more then 10 amps being pulled by each motor consistently or the motors may overheat, and you will have to have the correct gear size to fit your power wheels on the shaft, but again many DIYers have reported using these motors in Power Wheels as a upgrade

**Q: do you have shaft adapters or extentions for this motor**
A: I am sorry we do not have any accessories for them since they were manufacture leftovers that never got used, so we just have the loose motors.  We do have a nearly identical motor for sale on Amazon with a gear pre-installed at the factory.  It is available here: http://www.amazon.com/RS-550s-18v-6v-Torque-Drills/dp/B00WQBVDJI/ref=sr_1_8?ie=UTF8&qid=1435507507&sr=8-8&keywords=dc+motor+18v

## Frequently Bought Together

- RS-550s 18v (12v - 20 Volts) DC Motor Round Shaft - High Power & Torque for DIY Electric/Electronic Projects, Drills, Robots, RC Vehicals, Remote Controlled Cars/Robot, Saw Repair/Replacement Engine
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**Shop now:** [https://www.desertcart.pl/products/281323659-rs-550s-18v-6v-24v-dc-motor-round-shaft-high](https://www.desertcart.pl/products/281323659-rs-550s-18v-6v-24v-dc-motor-round-shaft-high)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-25*