The conical taper symbol is placed with a dimension value to indicate that the value is controlled as a standard taper. The value listed with the symbol is the ratio of the diameter change to length change, illustrated in Figure 1.

Figure 1: Conical Taper Value



When applying the conical taper symbol to a print, the symbol is always represented with the vertical leg on the left, regardless of the actual direction of the taper shown on the drawing. For standard taper series, basic dimensions are used. A conical taper is illustrated in Figure 2, with the conical taper symbol highlighted in green.

Conical Taper

Figure 2: How to Indicate a Conical Taper


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