Flat Idler John Deere AM115459 Idler H: 3/16 ", Idler B: 3 ", Idler C: 13/32 ", Height: 1 ", OD: 3 1/2 ", Explanation of Letters: Refer to the drawing by clicking on More Info, Idler D: 3/4 ", Idler F: N/A ", ID: 1/2 ", Idler V: 1 ", Material: Plastic, Idler A: 3 1/2 ", Idler E: N/A "