The WHLAXLE6i axle is a FLANGE style axle made of 2024-T351 AL alloy. This axle has a 1.5 inch diameter bearing surface. The axle has 1.125 inch spacing between the two 0.313 & two 0.375 inch bolt holes on a 2.25 reference circle. This axle assembly comes with the AN6 axle nut. The WHLSP-A6I spacer is included to provide caliper alignment for the WHLWi600XLT wheel and brake
Matco Aircraft Landing Systems axles that are aluminum are black anodized and steel axles are yellow zinc.