save abdessamad97, it is sufficent to impose a bond of joint type coincidence between the axes of the spring and the hole on the bushing (which corresponds to the axis of the bushing itself )
Afterwards you have to bind the grinding plan on the bushing with a perpendicular plan to the axis of the spring and passing through the starting point of the propeller that generated it, possibly act on the orientation to get the right one.
Hi.