How to define Knurl on drawing? - Engineering Stack Exchange In the US, ANSI B94 6 has a tolerance class system to ensure that the pre- and post- knurl OD tolerances are compatible, but I haven't seen any reference to how it handles metric units like you have You can find a little more information on knurls and how they are calculated and formed in the Machinery's Handbook machining section, but it is
technical drawing - Is the diameter before knurling assumed to be the . . . Both the person machining the turned 'blank', and the person adding the knurl to that will be primarily concerned with the 'smooth' diameter *The average diameter actually goes down, since volume is related to radius cubed, meaning the indentations are deeper than the ridges are tall, relative to the original diameter
Is a gear usually held to a shaft by friction or an adhesive? A knurl can be used to increase the effective diameter of a cylinder It is also possible that this method was used instead of a shear pin as a kind of "over-torque valve" for want of a better term I'd say this machinery was definitely built down to a price ! $\endgroup$
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