what size shaft adapter would i need to install a v-belt pulley on this motor? thank you

A 3.175MM BORE PULLEY WHEEL OF VARYING OUTER SIZE IS YOUR PERFECT FIT.

Will this fit a bosch 18v cordless drill model ddb191?

I don't know. You might have to call the company to find out. Sorry!!

Can you change direction by change current direction?

Yes, that's the case with any dc motor. Have fun!!

Does this motor require any special kind of driver? ordered this, hooked it up to 18v, 3a power supply. it just sits there an twitches.

At 5v-14v is the comfort zone for this motor 18v-24v will spike up intense heat that can inflictse

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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18v DC Motor Drill RC 550 D-Shaft (1/8in / 3.175mm Diameter Shaft) Fan High Torque 20K RPM Tool Replacement Upgrade 18 Volt (12v - 24vDC) RS-550S DIY Electric Drill Robot Remote Controlled Car

18v DC Motor Drill RC 550 D-Shaft (1/8in / 3.175mm Diameter Shaft) Fan High Torque 20K RPM Tool Replacement Upgrade 18 Volt (12v - 24vDC) RS-550S DIY Electric Drill Robot Remote Controlled Car

Product ID: 89437714

Details

Brand
ProTechTrader
Horsepower
180 Watts
Material
carbon
Speed
20000 RPM
Voltage
18 Volts

⚡18V Optimal Power

🔩3.175mm D-Shaft Precision

🚀20,000 RPM High Speed

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KD 7.69

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Sold byAmazon KUWAITDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
ProTechTrader
Horsepower
180 Watts
Material
carbon

Description

⚙️ Upgrade your toolkit with the motor that powers innovation at 20K RPM!

DIY ROBOTICS READY - Trusted choice for remote-controlled cars, PowerWheels, gate openers, and custom builds.
LIGHTWEIGHT COMPACT - Only 7.7oz with a sleek 2.24in length fits tight spaces without bulk.
PRECISION FIT UPGRADE - 3.175mm D-shaft with 9mm length ensures seamless replacement in compatible drills and tools.
POWERHOUSE PERFORMANCE - Delivers peak torque of 70.55 oz-in for demanding DIY and robotics projects.
VERSATILE VOLTAGE RANGE - Operates efficiently from 6V to 24V, optimized at 18V for max speed and torque.

The RS-550S 18V DC Motor is a high-speed, high-torque brushed motor featuring a 3.175mm D-shaft designed for power tool drill replacements and DIY robotics. Operating optimally at 18 volts, it delivers up to 20,000 RPM with 70.55 oz-in torque, making it ideal for remote-controlled cars, PowerWheels, and various custom projects. Compact and lightweight, it fits many 3/8in drills and outdoor tools, but compatibility should be verified before purchase.

Specifications

ASIN	B07DYTM7NQ
Best Sellers Rank	#365,006 in Toys & Games ( See Top 100 in Toys & Games ) #996 in RC Electric Motors
Brand	ProTechTrader
Brand Name	ProTechTrader
Customer Reviews	3.9 out of 5 stars 79 Reviews
Horsepower	180 Watts
Included Components	Motor
Manufacturer	ProTechTrader
Material	carbon
Material Type	carbon
Model	RS-550S-D
Part Number	RS-550S-D
Shaft Diameter	3.18 Millimeters
Speed	20000 RPM
UPC	789048342517
Voltage	18 Volts

Reviews

K**K

27.08.2023

O**N

7.11.2025

B**Y

9.07.2025

A**P

9.09.2025

R**E

3.07.2025

J**.

7.05.2020

K**E

25.12.2020

J**.

27.02.2019

K**M

4.09.2021

R**C

5.12.2019

D**N

26.06.2019

J**Y

8.05.2020

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