Wheels keep turning
Staff Sgt. Andrew West, 4th Equipment Maintenance Squadron wheel and tire shop non-commissioned officer in charge, installs a main tire bearing can on the main landing gear tire of an F-15E Strike Eagle on Seymour Johnson Air Force Base, N.C., Nov. 5, 2009. This bearing can is an of the essential part of the tire, it makes the tire spin freely once installed onto a jet. (U.S. Air Force photo/Senior Airman Ciara Wymbs)