2-7/16" Shaft Dia; 3-5/8" Housing Bore; 3/8" Nominal Width; Nitrile Lip; Solid Seal; 3/8" Actual Width; Not Spring Loaded; 2 Sealing Lips; No Lip Retainer; Steel Case; 49 Seal Design Code

2-5/8" Shaft Dia; 3-5/8" Housing Bore; 0.468" Nominal Width; Nitrile Lip; Solid Seal; 15/32" Actual Width; Spring Loaded; 1 Sealing Lips; Carbon Steel Garter Lip Retainer; Steel Case; SA Seal Design Code

2-7/16" Shaft Dia; 3-5/8" Housing Bore; 0-3/8" Nominal Width; Nitrile Lip; Solid Seal; 3/8" Actual Width; No Spring Loaded; 2 Sealing Lips; None Lip Retainer; Steel Case; KB-H Seal Design Code