Base to Center Height:3.250 ", Bore Dia:1.875 ", Brand:AMI BEARINGS, Expansion / Non-expansion:Non-expansion, Housing Material:Teflon Coated Cast Iron, Housing Outside Diameter:4.500 ", Housing Overall Length:5.500 ", Insert Material:Stainless Steel, Length Thru Bore:2.031 ", Mounting Method:Set Screw, Seals:Single Lip Contact