Pully Wheel Design and Material Validation.

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Job Description

I need 3 or 4 CAD Engineering Drawings. They will be similar and not anymore difficult as the drawing provided below.
The drawings are of 2 "Brass" Pulley Wheels and 1 Center steel "Bushing" that either of the pulley wheels can be mounted to.
The 4th drawing would be for a mounting bolt if we are unable to find something currently on the market being produced for a reasonable price.
Finally as a design engineer myself, I have a really good idea as to what materials should be used, but, I want some one with metallurgy experience to "Validate" that the materials we are using will be suitable for the job. I will provide load, and usage requirements for the parts.

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