inside diameter


Also found in: Acronyms, Wikipedia.

inside diameter

[′in‚sīd dī′am·əd·ər]
(design engineering)
The length of a line which passes through the center of a hollow cylindrical or spherical object, and whose end points lie on the inner surface of the object. Abbreviated ID.
References in periodicals archive ?
The effective diameter of the cylindrical active core is 40 cm, with an effective inside diameter of 17 cm.
hole sizes with various inside diameter openings, and are designed with multiple locks to positively snap in panels ranging from 1/32- to 1/8-in.
The standard unit handles cores up to 60" long and 3" inside diameter. The unit runs on 110-volt electric power.
DxD is the diameter corresponding to section x (from 1 to 41) [d.sub.F] is the inside diameter of workpiece pipe [d.sub.1] is the inside diameter of the finite pipe [C.sub.x] is a constant related to the material flow as shown in table 1 [l.sub.i] is the clearance between mandrel and inside diameter of workpiece L is the working length of the mandrel [z.sub.ref] is the reference tapering
* Complex geometry--The casting was an open ring (inner diameter of more than 4 ft.) with two flanges running around the exterior of the part and a T-shaped feature "roller-coastering" around the inside diameter. Two large irregularly shaped wings required a drag and two copes so the mold had two parting lines.
Vacuum flow rates range from 0 to 375 SCFM and are controlled by regulating the input pressure, while material flow capacity is determined by the inside diameter of the pumps (16 models ranging from 1/8" to 4" ID with vacuum levels from 0 to 10" Hg).
Consider the design of a waterline main with a 64-inch inside diameter subjected to a 150 psi working pressure and a 75 psi surge pressure.
The inside diameter of the chamber measures 0.4 m, and the wall thickness is approximately 0.2 m.
The preferred way to measure is to use an inside diameter measuring instrument like a telescoping spring gauge, which is inserted into the throat mouth with the springs fully compressed and then opened up, locked and twisted out.
A general guideline for boss design is that the inside diameter - commonly the pitch diameter of the screw - usually depends upon recommendations provided by the screw manufacturer.
[trade hardcover and signed, limited edition hardcover] Inside Diameter" The France Poems.
Using a hacksaw or a pipe cutter, cut an 18-inch length of PVC pipe (2-inch inside diameter).