New, MARATHON model 5KH33JNA534T base mount electric motor. Originally intended for belt driven blower. Splined hub extends from the end opposite the shaft 1.71" dia. x 1-1/2" long. Shaft bushing 1/2" inside diameter 5/8" outside diameter 1-3/8" long with 3/16" wide keyway. Also includes rings so the motor can be put into existing air moving systems.