Base to Center Height:3.250 ", Bore Dia:1.813 ", Brand:MORSE INDUSTRIAL, Expansion / Non-expansion:Non-expansion, Housing Material:Cast Iron, Housing Outside Diameter:4.375 ", Housing Overall Length:5.438 ", Insert Material:Black Oxide Coated Steel, Length Thru Bore:2.031 ", Mounting Method:Set Screw, Seals:Felt Labyrinth