this Solid Cast Iron 1-1/8" X 3-1/4" Half Bearing Spacer Is Used On Disc Harrows. This Half Bearing Spacer Is Used On A 1-1/8" Square Axle. Specifications 1-1/8" X 3-1/4" Half Bearing Spacer Solid Inside Top To Bottom Bottom Base Measurement: 4-9/16"...