Bearing / Toro 251-347Pack Size:1John Deere M802917, Toro 251-347R & R R251-347Toro Greensmaster Flex 18 and 21, Greensmaster Dual Point Adjust, Groundsmaster 3500D, 3505D, 4500D, 4700D, 2003 and olderHeight: .468 ", ID: .785 ", OD: 1.650 ", Ref. No.: 6004-2RS