Electronics > Mechanical & Automation Engineering

Standard Brushed DC Motor Sizes

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dapeake:
Is there a reference or a standards organization that has settled on a set of physical guidelines for Brushed DC motors, like those found in small toys? I have seen numbers such as N20, Type 130, etc... but I have not seen a unified standard of specifications. (kinda like NEMA)

For this product I am developing, I bought a motor from Digikey which they called a "standard motor". It's great, low cost and way outperforms it's datasheet.

 https://www.digikey.com/en/products/detail/nmb-technologies-corporation/PPN7PA12C1/2417079?s=N4IgTCBcDaIA4EYAsBmArGgtAOwCYgF0BfIA.

I felt it was safe to invest time into - I created drive circuitry and firmware, resin prints of the product enclosure, etc... -  but it has a 1.5mm shaft, and I have found it extremely difficult to find plastic gears that are for 1.5mm shaft. And, making plastic injection molds around a completely proprietary motor seems unwise. So I need to speak the right search language in finding a replacement, or confirming that this motor is indeed in compliant with a standard. Any help in finding a library of standards for toy sized DC motors would be greatly appreciated!

Thanks,

Dan
San Jose, CA




beanflying:
No real standard other than Mabuchi is sort of a defacto standard for their own and the hundreds of clones but this is still only a portion ( a fairly large one) of the options. https://www.mabuchi-motor.com/product/knowledge/classification/designations.html

dapeake:
Great link. Mabuchi is quite massive. This is a step in the right direction. I bet I will be able to cross the motor I have to their catalog.

Thanks,

Dan

salihkanber:
I don't think there is, afaik each manufacturer has its own sizes and standards such as https://www.portescap.com/en/products/brush-dc-motors/all-dc-motors

dapeake:
Thanks, that's a great catalog of highly efficient motors. I bet they are pricey!

Thanks,

Dan

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