Wheel:
Hub:
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Hi @1ChamplainRobotics1 and welcome to the forum!
If you look at the drawings of these two elements (https://www.robotshop.com/media/files/zip/documentation-am-0940a.zip , https://www.robotshop.com/media/files/zip/documentation-am-0077a.zip ), it seems that the 6 holes for screws are matching.
Both of them have 6 bolt holes divided in 1.875 diameter circle. Wheel has 0.17 diameter holes and hub has 0.2 diameter holes. You just need 6 screws and 6 nuts to assemble these two.
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