Here is a set of shaft sleeves, which fits Hill-Rom medical vacuum pump, size RC-0630.  If you were to buy this from Hill-Rom you would use part number:  6911-0001-772.   

This auction is for one set (two sleeves).  These are not supplied in the repair kit, but are a potential wear item.

To my knowledge HillRom is no longer in the business of supplying repair parts for their vacuum pumps.  I can supply a wide variety of items if you are repairing your pump.  I stock a full line of repair kits and filters as well. 

Contact me with any questions or with information on your Hill-Rom / Medeas vacuum system.  I stock repair parts and filters for your medical vacuum pumps, which are often no longer available from Hill-Rom.  We can also suppply medical air compressors and vacuum pumps, in additon to filters for a variety of pumps.  Thank you for taking the time to look at this item.