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Draw neat sketch of a protected type flanged coupling showing all details.

Question: 

Draw neat sketch of a protected type flanged coupling showing all details.

Answer: 

distance to some degree. c) For effective conjugate action i.e for maintaining a constant velocity ration, in case of involute gearing system, the center distance can be changed without affecting angular velocity ratio. d)In involute gearing as the path of contact is a straight line and the pressure angle is constant .

Sketch of Protected type flanged coupling with details :