Plastic bushing used on models: DREL45010 - PROFORM 900 CARDIO CROSS TRAINER ELLIPTICAL, DREL45011 - PROFORM 900 CARDIO CROSS TRAINER ELLIPTICAL, HRCCEL49010 - HEALTHRIDER 830 ELLIPTICAL, HRCCEL49011 - HEALTHRIDER 830 ELLIPTICAL, HRCCE69020 - HEALTHRIDER C860E ELLIPTICAL, HREL49010 - HEALTHRIDER 830 ELLIPTICAL, HRE59020 - HEALTHRIDER C840E ELLIPTICAL, HRE69020 - HEALTHRIDER C860E ELLIPTICAL, PFCCEL45011 - PROFORM 900 CARDIO CROSSTRAINER ELLIPTICAL, PFCCEL45012 - PROFORM 900 CARDIOCROSS TRAINER ELLIPTICAL, PFEL45010 - PROFORM 900 CARDIO CROSS TRAINER ELLIPTICAL, PFEL45011 - PROFORM 900 CARDIO CROSS TRAINER ELLIPTICAL, PFEL45012 - PROFORM 900 CARDIO CROSSTRAINER ELLIPTICAL, PFEVEL34020 - PROFORM 750 RX ELLIPTICAL, PFEVEL34021 - PROFORM 750 RX ELLIPTICAL, PFEVEL48830 - PROFORM 585 EKG ELLIPTICAL, 306830 - PROFORM 900 CARDIO CROSSTRAINER ELLIPTICAL, 306831 - PROFORM 900 CARDIO CROSSTRAINER ELLIPTICAL