* Note 4) The a and b shaft are not used for standard dimension 1 mm or less. * Note 3) The tolerance grade of J hole is IT6 to IT8 only.Ī, b, c, cd, d, e, ef, f, fg, g, h, js, j, k, m, n, p, r, s, t, u, v, x, za, zb, zc * Note 2) JS 7 to JS 11 are rounded down to the decimal point so that IT / 2 becomes an integer of micrometer unit. * Note 1) A and B holes are not used for standard dimension 1 mm or less. The corresponding tolerance range and tolerance grade are as follows.Ī, B, C, CD, D, E, EF, F, FG, G, H, JS, J, K, M, ZA, ZB, ZC However, the number of input digits is limited to 6 digits. Input diameter of 3150 mm or less is possible. Then, calculate the minimum clearance and the maximum clearance, in the case of clearance in plus, and in case of interference it is written minus. In addition, from the combination of the selected hole and shaft, we distinguish the type of fit (clearance fit, transition fit, interference fit). Simply enter the diameter value, select the tolerance range with the tolerance range button, select the tolerance class with the tolerance class button, and the fitting tolerance value of "hole" and "shaft" will be displayed. Fit tolerance is calculated based on ISO. The Fit Tolerance Calculator application calculates the fit tolerance of "hole" and "shaft" from the input diameter value.
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