What is the minimum voltage to make the motor turn? for instance would 2 rechargeable aa batteries would make it turn please? how about three?

I've just tested it down to 1.7V. It turned, but only slowly. So 2 or 3 AAs should work, even rechargables. But the higher the voltage you can use, the more speed and torque you'll get.

what is the diameter of the axle?

the diameter of shaft is 5.22 mm / 0.22 inch with 2 flats either side shaft length 8 mm hope this helps

What speed or RPM are these.?

It depends on how many volts you give them and if you fix wheels and put on a car the load will cause friction to slow them down. I tested them with no load with 5v across and they gave around 80 revolutions per minute. I used them on a car with a motor driver and found that with 4 rechargeable AA batteries around 5.2V that they were a bit underpowered so had to wire in a second small battery holder so I was using 7.8V to get them to work adequately. I have now built a second car using 8AA batteries and that works pretty well.

I’ve never done anything with electronics. What else do I need to make these run? Like wires, a battery etc, help would be appreciated :)

Arduino uno and l293d motor shield some simple code and jumper wires

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Gebildet 4pcs Geared Motor DC3V-12V DC for Four-wheel Drive Toy Car/Robotic Body/Aircraft Toys+4pcs Plastic Tire Wheels

Product ID: 222507724

Details

Brand
Gebildet
Horsepower
0.1 Horsepower
Model name
E490
Speed
1800 RPM
Voltage
12 Volts

🔋Operates efficiently at 3V-12V DC

⚙️1:48 gear ratio for precise torque

🏎️1800 RPM speed for dynamic motion

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Description

⚡ Gear up your DIY game with precision power and unstoppable speed!

COMPLETE DIY KIT - Includes 4 high-quality plastic tires, so you’re ready to build your four-wheel drive toy or robot instantly.
LOW POWER CONSUMPTION - Draws ≤150mA (max 200mA), ensuring energy-efficient performance without overheating.
PRECISION GEARED POWER - 1:48 gear ratio delivers smooth, controlled torque perfect for DIY robotics and RC cars.
WIDE VOLTAGE COMPATIBILITY - Runs seamlessly between 3V and 12V, giving you flexible power options for diverse projects.
INTERFERENCE RESISTANT DESIGN - Built-in EMC and anti-interference features keep your microcontroller signals clean and reliable.

The Gebildet 4pcs Geared Motor set offers four 1:48 ratio DC motors with plastic tires, operating efficiently between 3V and 12V at speeds up to 1800 RPM. Designed for hobbyists and professionals alike, these motors provide reliable torque and low current draw, perfect for four-wheel drive toy cars, robotic bodies, and other electronic projects requiring interference-resistant performance.

Specifications

ASIN	B08D39MFN1
Best Sellers Rank	44,643 in Toys & Games ( See Top 100 in Toys & Games ) 32 in Model Building Motors
Brand	Gebildet
Country Of Origin	China
Customer Reviews	4.5 4.5 out of 5 stars (309)
Horsepower	0.1 Horsepower
Item Weight	0.21 Kilograms
Manufacturer	Gebildet
Manufacturer Part Number	E490
Material	Plastic
Model Name	E490
Model Number	E490
Number of Items	8
Speed	1800 RPM
Unit Count	8.0 count
Voltage	12 Volts

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€ 30.92

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In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

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TrustScore 4.5 | 7,300+ reviews

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