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Acme is a trapezoidal thread profile with a 29° V angle, defined in ASTM B1.5. It is the most popular thread used for traversing linear motion (For example, leadscrews and power screws) due to its ability to withstand large loads and ease of manufacturing.
ACME Thread data sheet. 1/4 - 16 ACME : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
ACME thread calculator to find dimensions of general purpose single and multiple start ACME threaded rods and nuts. Calculation can be done for tolerance classes of 2G, 3G and 4G. Tolerance class 2G is the preferred class but if less play and backlash is needed, 3G or 4G can be selected.
The following table defines recommended industry standard sizes for External ACME General Purpose Threads per American National Standard ASME/ANSI B1.5. There are three classes of General Purpose ACME threads, 2G, 3G, and 4G each class provides some clearance on all standard size diameters for free movement, and are used in assemblies with the ...
This Acme Thread calculator can be used for calculating the various dimensions of a Standard Acme thread. There's also a link to our Universal Convertor.
ASME B1.5-1997, Acme Screw Threads. Standard sizes for External ACME General Purpose Threads per American Standard ASME/ANSI B1.5. Major, minor and pitch diameter are given in the table for 2G, 3G and 4G tolerance classes.
This ACME Thread General Purpose Design Calculator will determine the three classes of General Purpose, 2G, 3G, and 4G, for the external and internal threads.
