hi,
i am good at 3D modelling, and capable to model this for you, and saw the picture, and easy to model, let me hear from you if you want to hire me
about the size, is it 10 mm?, or what exactly?
i have done with for 10 mm outside diameter, look at my portfolio, look at this link , and you will find it
my portfolio
https://www.freelancer.com/u/Mechatronics2.html
hope to hear from you,
thanks