The ride was one of the attractions at Party on the Pavement in Racine, about 30 miles south of Milwaukee.
Officials say emergency crews were called about 1 p.m. Saturday after it appeared the ride fell out of alignment and got stuck.
No one was hurt, but it took about two hours to stabilize the wheel before the rescues began.
Seven-year-old Nicole Wagenaar tells The Journal Times of Racine she cried a bit while she was stuck on the ride, but firefighters got her down safely.
Police Chief Kurt Wahlen says the amusement ride won't move until an expert does an inspection to determine why it failed.
Information from: The Journal Times, http://www.journaltimes.com