Patent ID: 8419574

Claim:
An isolator comprising: a shaft ( 10 ); a pulley ( 20 ) journalled to the shaft on a first bushing ( 40 ) and a second bushing ( 50 ); the shaft comprising a shaft stop ( 12 ) disposed on a shaft radially outer surface ( 14 ); the pulley and the shaft rotationally moveable relative to each other; the pulley comprising an inner hub ( 23 ), the inner hub having a pulley stop ( 24 ) disposed to cooperatively engage the shaft stop; a torsion spring ( 30 ) engaged with the shaft and the pulley, the torsion spring exerting a contractive force parallel to an axis of rotation (A-A) in order to retain the pulley on the shaft; a cover member ( 60 ) fixed to the shaft, the pulley urged into engagement with the cover member by the torsion spring axial contractive force; and a rubber member ( 80 ) disposed on the shaft stop for engaging the pulley stop.