Senior Airman Cory Nimz removes a wheel bearing from a tire.
U.S. Air Force Senior Airman Cory Nimz removes a wheel bearing from the tire of a piece of aerospace ground equipment at Joint Base Balad, Iraq, prior to cleaning them on Nov. 18, 2008. The cleaning allows the unit to move more efficiently by preventing deterioration. Nimz is an aerospace ground equipment journeyman assigned to the 332nd Expeditionary Maintenance Squadron.