{ "_note": "Fundamental deviations ISO 286-1 in micrometres (\u00b5m). Shafts = upper deviation es. Bores = lower deviation EI. JS/js = \u00b1IT/2 (not tabulated, calculated at runtime).", "ranges": [ "1-3", "3-6", "6-10", "10-18", "18-30", "30-50", "50-80", "80-120", "120-180", "180-250", "250-315", "315-400", "400-500" ], "_shafts_note": "es = upper deviation in \u00b5m (negative = below zero). ei = es - IT", "shafts": { "a": [ -270, -270, -280, -290, -300, -310, -320, -340, -360, -380, -410, -440, -480 ], "b": [ -140, -140, -150, -150, -160, -170, -180, -200, -210, -230, -240, -260, -280 ], "c": [ -60, -70, -80, -95, -110, -120, -130, -145, -160, -170, -180, -190, -200 ], "cd": [ -34, -46, -56, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "d": [ -20, -30, -40, -50, -65, -80, -100, -120, -145, -170, -190, -210, -230 ], "e": [ -14, -20, -25, -32, -40, -50, -60, -72, -85, -100, -110, -125, -135 ], "ef": [ -10, -14, -18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "f": [ -6, -10, -13, -16, -20, -25, -30, -36, -43, -50, -56, -62, -68 ], "fg": [ -4, -6, -8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "g": [ -2, -4, -5, -6, -7, -9, -10, -12, -14, -15, -17, -18, -20 ], "h": [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "k": [ 0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5 ], "m": [ 2, 4, 6, 7, 8, 9, 11, 13, 15, 17, 20, 21, 23 ], "n": [ 4, 8, 10, 12, 15, 17, 20, 23, 27, 31, 34, 37, 40 ], "p": [ 6, 12, 15, 18, 22, 26, 32, 37, 43, 50, 56, 62, 68 ], "r": [ 10, 15, 19, 23, 28, 34, 41, 51, 63, 77, 98, 98, 108 ], "s": [ 14, 19, 23, 28, 35, 43, 53, 71, 92, 100, 108, 114, 126 ], "t": [ 0, 0, 23, 28, 35, 43, 53, 71, 92, 100, 108, 114, 126 ], "u": [ 18, 23, 28, 33, 41, 53, 66, 90, 109, 130, 150, 171, 190 ], "v": [ 0, 0, 0, 0, 47, 59, 75, 102, 122, 150, 172, 202, 228 ], "x": [ 20, 28, 34, 40, 50, 64, 80, 108, 146, 172, 210, 248, 280 ], "y": [ 0, 0, 0, 50, 63, 80, 100, 134, 180, 214, 258, 310, 355 ], "z": [ 26, 35, 42, 50, 63, 80, 100, 134, 180, 214, 258, 310, 355 ], "za": [ 32, 42, 52, 64, 77, 98, 120, 160, 210, 258, 310, 365, 415 ], "zb": [ 40, 50, 67, 90, 108, 136, 168, 218, 284, 340, 415, 490, 560 ], "zc": [ 60, 80, 97, 130, 150, 188, 236, 308, 390, 470, 575, 660, 740 ] }, "_bores_note": "EI = lower deviation in \u00b5m. ES = EI + IT. For H: EI=0 always.", "bores": { "A": [ 270, 270, 280, 290, 300, 310, 320, 340, 360, 380, 410, 440, 480 ], "B": [ 140, 140, 150, 150, 160, 170, 180, 200, 210, 230, 240, 260, 280 ], "C": [ 60, 70, 80, 95, 110, 120, 130, 145, 160, 170, 180, 190, 200 ], "D": [ 20, 30, 40, 50, 65, 80, 100, 120, 145, 170, 190, 210, 230 ], "E": [ 14, 20, 25, 32, 40, 50, 60, 72, 85, 100, 110, 125, 135 ], "F": [ 6, 10, 13, 16, 20, 25, 30, 36, 43, 50, 56, 62, 68 ], "G": [ 2, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20 ], "H": [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "K": [ 0, 2, 2, 2, 2, 3, 4, 4, 4, 5, 5, 5, 6 ], "M": [ -2, -4, -6, -7, -8, -9, -11, -13, -15, -17, -20, -21, -23 ], "N": [ -4, -8, -10, -12, -15, -17, -20, -23, -27, -31, -34, -37, -40 ], "P": [ -6, -12, -15, -18, -22, -26, -32, -37, -43, -50, -56, -62, -68 ], "R": [ -10, -15, -19, -23, -28, -34, -41, -51, -63, -77, -98, -98, -108 ], "S": [ -14, -19, -23, -28, -35, -43, -53, -71, -92, -100, -108, -114, -126 ], "T": [ 0, 0, -23, -28, -35, -43, -53, -71, -92, -100, -108, -114, -126 ], "U": [ -18, -23, -28, -33, -41, -53, -66, -90, -109, -130, -150, -171, -190 ], "V": [ 0, 0, 0, 0, -47, -59, -75, -102, -122, -150, -172, -202, -228 ], "X": [ -20, -28, -34, -40, -50, -64, -80, -108, -146, -172, -210, -248, -280 ], "Z": [ -26, -35, -42, -50, -63, -80, -100, -134, -180, -214, -258, -310, -355 ], "ZA": [ -32, -42, -52, -64, -77, -98, -120, -160, -210, -258, -310, -365, -415 ], "ZB": [ -40, -50, -67, -90, -108, -136, -168, -218, -284, -340, -415, -490, -560 ], "ZC": [ -60, -80, -97, -130, -150, -188, -236, -308, -390, -470, -575, -660, -740 ] } }