Premium Quality Replacement PartFront or Rear Left & Right Wheel Ball BearingFor John Deere Models:Z730M Mid-Duty ZTrak Mower – PC13619Z735E Mid-Duty ZTrak Mower – PC13618Z735M Mid-Duty ZTrak Mower – PC13620Z740R Mid-Duty ZTrak Mower – PC13621Z760R Mid-Duty ZTrak Mower – PC16458Order Includes:2 x Wheel Ball Bearing | AM102888Width: 15 mm | 0.59″Inner Diameter: 24.9 mm | 0.98 “Outer Diameter: 57.7 mm | 2.27 “Note: Z730M Z735M Z760R 54/60″ deckZ735E 60″ deckZ740R 48/54/60” deck**