Question 1

What is the internal gear ratio of the motor?

Accepted Answer

Dear customer, good morning
Thank you very much for your email and support for our products.

Thank you for your interest in ours DIY Encoder Gear Motor 
This  Product Dimensions‏:‎5.31 x 3.15 x 3.74 inches; 3.53 Ounces

this   is  100RPM Style
Hope this information is helpful, best wishes!
If you have other questions, please feel free to consult us.
I wish you a wonderful day.

Question 2

Where is the data sheet? Wondering what the stall current is of these motors.

Accepted Answer

I could not find the manufacturer’s data sheet either although you will be able to find sufficient information for it by googling.
As for stalling characteristic I figured it out by experiments as a function of the PWM duty cycles as well we the power voltage.  Good luck.

Question 3

How do I select what rpm I want?

Accepted Answer

Since any detailed torque characteristics data is available you will not be able to predetermine exactly which nominal RPM you want for your particular project.  So I kept on buying different type until I found the right one.

Question 4

What is the gear ratio between the motor and the output of the gearbox?

Accepted Answer

Dear customer, good morning
Thank you very much for your email and support for our products.

Thank you for your interest in ours DIY Encoder Gear Motor
This product  Dimensions	5.31 x 3.15 x 3.74 inches; 3.53 Ounces

Package List:
1 x Gear Motor
1 x 65mm Diameter Rubber Tire
1 x Pure Brass Coupling
1 x Aluminum Alloy Mounting Bracket
1 x Motor Cable (14.2cm)
1 Set of Matching Screws

Hope this information is helpful, best wishes!
If you have other questions, please feel free to consult us.
I wish you a wonderful day.

ASIN	B07X95BXZ6
Best Sellers Rank	#280,190 in Toys & Games ( See Top 100 in Toys & Games ) #628 in RC Electric Motors
Brand	Garosa
Brand Name	Garosa
Customer Reviews	4.1 out of 5 stars 11 Reviews
Item Weight	0.1 Kilograms
Manufacturer	Garosa
Material	Metal
Material Type	Metal
Model	Garosa612vha7p5i-05
Model Name	gear
Part Number	Garosa612vha7p5i-05
Speed	100 RPM
UPC	739904619123
Voltage	6 Volts

DC 6V DIY Encoder Gear Motor with Mounting Bracket 65mm Wheel Kit Micro Speed Reduction Motor Mini Motor for Art Car Robot Model DIY Engine Toy(100RPM)

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