Plate seals prevent bulk material leaks, which reduces product loss, contamination and bearing failure. This seal is the most common and economical seal. It is normally furnished with a lip seal and installed between the trough end and bearing, but may be used separately on pedestal type trough ends. Slotted mounting holes allow use with both ball and roller flanged bearings. Martin Plate Seal, For Use With: Screw Conveyor, 1-1/2 in Shaft Dia, 4 in Mounting Bolt Hole Center (Ball Bearing), 4-1/8 in Mounting Bolt Hole Center (Roller Bearing), 5-3/8 in Width and Height of Seal, 1/2 in Seal THK, Steel, 5-3/8 in L x 5-3/8 in W