These bearing spacer spools are 7-1/2 inches long and work on a 1-1/8 inch square axle. Made of cast iron, they are durable. The assembly is equipped with a grease fitting and can be lubricated for less wear and tear and for future maintenance.
7-1/2 inches long
2 middle ridges are 1-1/2 inches center to center
Outside ridges are 4 inches center to center
Fits a 1 1/8 inch square axle