What type of plastic are these made out of?

Typical plastic gears. Not a hard rubber. Good to have if you ever need a backup.

What size hole is in the gears? Are they all the same?

they vary from.0625 or 1/16 to .115 or 2.875mm that not any standard everything is +or- .003 there is no standard that they match,the plus or minus .003 is the test on my parts that i have

i need a double gear with 22 teeth at 14mm diameter and 12teeth at 10mm do you have please?

Hi thanks for your question. This is link of the size and specification of each gear → https://mega.nz/#F!BdpFVaZA!QzSstICCpv1_ZAt5UIaAPQ Any other question please feel free to contact us through email kuyiuss@outlook.com. We will always happy to help you out. Thank you!

ddoes this work for a goovi d380 ?

Hi, thanks for your question. This is the the size and specifications of each gear. Please have a look. https://mega.nz/#F!BdpFVaZA!QzSstICCpv1_ZAt5UIaAPQ

Plastic Gear Set 75pcs Single Double Reduction Gear Worm Gear

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Description

⚙️ Unlock your inner engineer — build smarter, build faster!

COMPLETE 75 PIECE GEAR ARSENAL - All the gears and parts you need in one kit to fuel your next innovation.
PERFECT FOR STEM MAKER CULTURE - Ideal for labs, classrooms, and hobbyists pushing the boundaries of creativity.
DURABLE HIGH QUALITY PLASTIC BUILD - Lightweight yet sturdy components designed to withstand repeated assembly and experimentation.
DIVERSE GEAR TYPES FOR ULTIMATE FLEXIBILITY - From worm to bevel gears, customize your DIY robots and cars with precision.
BOOST YOUR DIY PROJECTS WITH PROFESSIONAL GRADE PARTS - Join thousands of makers who trust this set to bring their mechanical ideas to life.

The AUKUYEE QY12 Plastic Gear Set offers 75 high-quality plastic gears and transmission parts, including single, double, worm, bevel, and crown gears, plus belts and pulleys. Designed for DIY car and robot projects, this comprehensive kit supports STEM education and hobbyist innovation with durable, versatile components made in the USA.

Reviews

T**R

Happy

Gear I've tried so far are good. Conclusion: I'm happy.

12.11.2018

M**.

lots of gears

seems to be a nice variety of gears, just as the image shows. i have not counted the lot, but it seems to be the right amount.

15.11.2025

A**R

Five Stars

Product works great. Just wish there were more duplicates of each type of gear.

9.03.2018

H**Y

Works great!

Nice selection of gears.

11.06.2026

L**F

Check sizing...

Gears were smaller than I thought they would be.

3.09.2025

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20947 Ft

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In stock

Sold byAmazon HungaryDelivered 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 Hungary.

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ASIN	B06XCG24HZ
Brand Name	AUKUYEE
Customer Reviews	4.1 out of 5 stars 326 Reviews
Manufacturer	Quimat
Material Type	Plastic
Model Number	QY12
Part Number	QY12

Plastic Gear Set, 75Pcs Single Double Reduction Gear Worm Gear for DIY Car Robot QY12

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