ARRANGEMENT FOR CLOSING A GAP BETWEEN A HARVESTING MACHINE ROLL AND A WALL FOR KEEPING FOREIGN MATTER AWAY FROM A BEARING SUPPORTING A SHAFT OF THE ROLL

摘要

A large round baler includes a plurality of bale-forming rolls which each ha ve opposite ends defined by stub shafts rotatably supported in respective beari ngs fixed to opposite side walls of the bale chamber. The rolls are each in the form of a hollow cylindrical drum and each stub shaft includes a flange having a diameter cor responding to the inside diameter of the drum and being secured to the drum at a location spaced inwardly from an end face of the drum. For preventing crop particles and juices from reaching each bearing, a ring-like seal body is fixed to the outer surface of the flange i n concentric relationship to the stub shaft and to, and between, a cylindrical sealing su rface of a collar that is fixed to the wall and a ring that is also fixed to the wall. The sea l body has a plurality of radially outward projecting lips disposed very close to the sealing surfa ce of the collar and a single radially inward projecting lip disposed very close to the ring.