Rupes Eccentric Bearing Stack Assembly
The Rupes® 291.390/C Eccentric Bearing Stack Assembly is a 4-piece unit that includes a pair of bearings, a backing plate mounting spindle, and a c-clip.
This assembly is best installed by the Rupes Factory-Direct Repair Center (link), a machine shop, or a mechanic. That being said, is not impossible to replace the assembly using some very basic tools. Typical tools needed to remove & replace the assembly include a Philips screwdriver, a heat gun, tool oil, bearing puller, a dowel punch & hammer, channel locks, a bench vise, and a sockets that match the diameter of the bearing assembly (and a size larger).
This assembly fits the following machines:
LHR15ES | LHR15ll | LHR15lll
LHR21ES | LHR21ll | LHR21lll | LHR12E