it is not oldham coupling.An Oldham coupling has three discs, one coupled to the input, one coupled to the output, and a middle disc that is joined to the first two.Fig is below
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Yes, there are three discs shown in your image. It appears the shafts do not align. This is (appears to be, anyway) an application for an oldham coupler.
No it consist of 2 set of flange and in between them a spider is placed and both the set of flange in different shape.1 set of flange consist of 2 flange and the other set is consist of 1 simple flange and the other one is in convergent shape.
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If you born poor its not your mistake but if you die poor its your mistake