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Prop animation basics...

You have a green prop_slow and a red prop_blurred, but no alpha-enhanced textures apparently. They turn alright except that the disc wobbles, which is obviously due to a not properly aligned pivot
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Yes I agree with you.Its easy to fix.This video is not about it.
Does the little circling arrow point to anything of relevance? If so I am at a loss to see what.
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Yes I am moving mouse around to show you my nightmer.As you can see hub is moving not properly.Its not easy to animate this part because hub has a strange shape.
 
OK, there is no 100 percent right answer for this.

I take it you have either the disc linked to hub or the other way round. Both would be OK, except you would animate the parent part only.

The problem with the spinning hub is that FSX cannot have spinning at a true 2000 RPM. Instead, fast spinning is imitated by a relatively slow spinning, blurred and partly transparent part. For the disc you achieve this via less than 100 percent opacity (typically 90), and by a near-black alpha channel in the texture.

This same strategy does not work well for the hub. I think the general trend is to model the hub not as it is in still condition (with bulges, protrusions, rivets and what not) but as what it looks like in spinning condition, i.e. without any sharp corners, perhaps just as a simple cylinder using the main material setting and texture because there is no (obvious) need to make it transparent. Nevertheless expect some visual interference between prop disc and hub, and there is plenty of room here for trial and error improvements.
 
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