Flanged packing gland seals prevent bulk material leaks, which reduces product loss, contamination and bearing failure. This seal consists of an external housing and an internal gland which is forced into the housing to compress the packing. It is the most positive type shaft seal and recommended for use where minor pressure requirements are desired. Martin Flanged Packing Gland Seal, For Use With: Screw Conveyor, 2.438 in Shaft Dia, 5-5/8 in Mounting Bolt Hole Center, 7-5/8 in Width and Height of Seal, 1/2 in Seal Flange THK, 5/8 in Mounting Bolt Dia, Cast Iron, 7-5/8 in L