### Calculation of Upper (es) and Lower (ei) Deviation For Shaft:

The deviations and fundamental tolerances provided by the ISO System. The limits of tolerance for holes or shafts are designated by the appropriate letter indicating the fundamental deviation. And Tolerance grade is dominated by followed by a suffix number. For example, if the hole deviation "H" and tolerance grade IT7,; designation would be H7, if Shaft deviation "k" and tolerance grade IT6; designation would be k6.If the basic size 50mm, tolerance designation would be 50H7 and 50k6.

The Upper and Lower deviations for Shaft are donated by "es" and "ei". The Upper and Lower deviations for Hole are donated by "ES" and "EI". The Fundamental Deviations can be calculated with the help of some formulas given below.

Calculation Fundamental Upper and Lower Deviation Of Shaft:

es=ei+IT,                      ei=es-IT

Calculation Fundamental Upper and Lower Deviation Of Hole:

ES=EI+IT,                     EI=ES-IT

Table Below: Fundamental Upper Deviation For Shaft "a" to "js" (0 mm To 500 mm)

 Over Up to Incl. FUNDAMENTAL UPPER DEVIATION (es ) IT01 to IT16 a b c cd d e ef f fg g h js 0 3 -270 -140 -60 -34 -20 -14 -10 -6 -4 -2 0 ITn/2 3 6 -270 -140 -70 -46 -30 -20 -14 -10 -6 -4 0 ITn/2 6 10 -280 -150 -80 -56 -40 -25 -18 -13 -8 -5 0 ITn/2 10 14 -290 -150 -95 -50 -32 -16 -6 0 ITn/2 14 18 -290 -150 -95 -50 -32 -16 -6 0 ITn/2 18 24 -300 -160 -110 -65 -40 -20 -7 0 ITn/2 24 30 -300 -160 -110 -65 -40 -20 -7 0 ITn/2 30 40 -310 -170 -120 -80 -50 -25 -9 0 ITn/2 40 50 -320 -180 -130 -80 -50 -25 -9 0 ITn/2 50 65 -340 -190 -140 -100 -60 -30 -10 0 ITn/2 65 80 -360 -200 -150 -100 -60 -30 -10 0 ITn/2 80 100 -380 -220 -170 -120 -72 -36 -12 0 ITn/2 100 120 -410 -240 -180 -120 -72 -36 -12 0 ITn/2 120 140 -460 -260 -200 -145 -85 -43 -14 0 ITn/2 140 160 -520 -280 -210 -145 -85 -43 -14 0 ITn/2 160 180 -580 -310 -230 -145 -85 -43 -14 0 ITn/2 180 200 -660 -340 -240 -170 -100 -50 -15 0 ITn/2 200 225 -740 -380 -260 -170 -100 -50 -15 0 ITn/2 225 250 -820 -420 -280 -170 -100 -50 -15 0 ITn/2 250 280 -920 -480 -300 -190 -110 -56 -17 0 ITn/2 280 315 -1050 -540 -330 -190 -110 -56 -17 0 ITn/2 315 355 -1200 -600 -360 -210 -125 -62 -18 0 ITn/2 355 400 -1350 -680 -400 -210 -125 -62 -18 0 ITn/2 400 450 -1500 -760 -440 -230 -135 -68 -20 0 ITn/2 450 500 -1650 -840 -480 -230 -135 -68 -20 0 ITn/2

Table Below: Fundamental Lower Deviation For Shaft "j" to "zc" (0 mm To 500 mm). Fundamental Deviation IT01 to IT16 for "m" to "zc".

 Over Up to Incl. FUNDAMENTAL LOWER DEVIATION (ei) j5/j6 j7 k4-k7 (incl.) other k m n p r s t u v x y z za zb zc 0 3 -2 -4 0 0 2 4 6 10 14 18 20 26 32 40 60 3 6 -2 -4 1 0 4 8 12 15 19 23 28 35 42 50 80 6 10 -2 -5 1 0 6 10 15 19 23 28 34 42 52 67 97 10 14 -3 -6 1 0 7 12 18 23 28 33 40 50 64 90 130 14 18 -3 -6 1 0 7 12 18 23 28 33 39 45 60 77 108 150 18 24 -3 -8 2 0 8 15 22 28 35 41 47 54 63 73 98 136 188 24 30 -3 -8 2 0 8 15 22 28 35 41 48 55 64 75 88 118 160 218 30 40 -4 -10 2 0 9 17 26 34 43 48 60 68 80 94 112 148 200 274 40 50 -4 -10 2 0 9 17 26 34 43 54 70 81 97 114 136 180 242 325 50 65 -5 -12 2 0 11 20 32 41 53 66 87 102 122 144 172 226 300 405 65 80 -7 -12 2 0 11 20 32 43 59 75 102 120 146 174 210 274 360 480 80 100 -9 -15 3 0 13 23 37 51 71 91 124 146 178 214 258 335 445 585 100 120 -9 -15 3 0 13 23 37 54 79 104 144 172 210 254 310 400 525 690 120 140 -11 -18 3 0 15 27 43 63 92 122 170 202 248 300 365 470 620 800 140 160 -11 -18 3 0 15 27 43 65 100 134 190 228 280 340 415 535 700 900 160 180 -11 -18 3 0 15 27 43 68 108 146 210 252 310 380 465 600 780 1000 180 200 -13 -21 4 0 17 31 50 77 122 166 236 284 350 425 520 670 880 1150 200 225 -13 -21 4 0 17 31 50 80 130 180 258 310 385 470 575 740 960 1250 225 250 -13 -21 4 0 17 31 50 84 140 196 284 340 425 520 640 820 1050 1350 250 280 -16 -26 4 0 20 34 56 94 158 218 315 385 475 580 710 920 1200 1550 280 315 -16 -26 4 0 20 34 56 98 170 240 350 425 525 650 790 1000 1300 1700 315 355 -18 -28 4 0 21 37 62 108 190 268 390 475 590 730 900 1150 1500 1900 355 400 -18 -28 4 0 21 37 62 114 208 294 435 530 660 820 1000 1300 1650 2100 400 450 -20 -32 5 0 23 40 68 126 232 330 490 595 740 920 1100 1450 1850 2400 450 500 -20 -32 5 0 23 40 68 132 252 360 540 660 820 1000 1250 1600 2100 2600

Table Below: Fundamental Upper Deviation For Shaft "d" to js; Lower Deviation For Shaft "k" to "u" (500 mm To 3150 mm)

 Over Up to Incl. FUNDAMENTAL UPPER DEVIATION (es) FUNDAMENTAL LOWER DEVIATION (ei) d e ef f fg g h js k m n p r s t u 500 560 -260 -145 -76 -22 0 ITn/2 0 26 44 78 150 280 400 600 560 630 -260 -145 -76 -22 0 ITn/2 0 26 44 78 155 310 450 660 630 710 -290 -160 -80 -24 0 ITn/2 0 30 50 88 175 340 500 740 710 800 -290 -160 -80 -24 0 ITn/2 0 30 50 88 185 380 560 840 800 900 -320 -170 -86 -26 0 ITn/2 0 34 56 100 210 430 620 940 900 1000 -320 -170 -86 -26 0 ITn/2 0 34 56 100 220 470 680 1050 1000 1120 -350 -195 -98 -28 0 ITn/2 0 40 66 120 250 520 780 1150 1120 1250 -350 -195 -98 -28 0 ITn/2 0 40 66 120 260 580 840 1300 1250 1400 -390 -220 -110 -30 0 ITn/2 0 48 78 140 300 640 960 1450 1400 1600 -390 -220 -110 -30 0 ITn/2 0 48 78 140 330 720 1050 1600 1600 1800 -430 -240 -120 -32 0 ITn/2 0 58 92 170 370 820 1200 1850 1800 2000 -430 -240 -120 -32 0 ITn/2 0 58 92 170 400 920 1350 2000 2000 2240 -480 -260 -130 -34 0 ITn/2 0 68 110 195 440 1000 1500 2300 2240 2500 -480 -260 -130 -34 0 ITn/2 0 68 110 195 460 1100 1650 2500 2500 2800 -520 -290 -145 -38 0 ITn/2 0 76 135 240 550 1250 1900 2900 2800 3150 -520 -290 -145 -38 0 ITn/2 0 76 135 240 580 1400 2100 3200

Untitled 1
Footer

Home | Mechanical Engineering| Robot | Aerospace | Structural Engineering |Videos | Comment |