Product review (3 stars): Won't work for Nordictrack 1000i.
Ordered these for a Nordictrack 1000i.  On this unit, the bearings are locked with a plastic end cap not a snap ring.  Now I have to purchase a new roller from Nordictrack.  $133.00.  I have four bearings that I cannot use and waited to long to install so now cannot return.  Bummer...