minor diameter

minor diameter

[′mīn·ər dī′am·əd·ər]
(design engineering)
The diameter of a cylinder bounding the root of an external thread or the crest of an internal thread.
References in periodicals archive ?
Limited Tenders are invited for 1)Conical Shell Mill Cutter 45 Deg, Minor Diameter : 50 Mm (Approx), Major Diameter : 145 Mm (Approx), Ap : 48 Mm (Approx), No.
The rotors in a tangential mixer have a major and minor diameter.
Carefully drill the screw holes with a drill sized to the minor diameter of your screws.
A pilot hole allows for the screw to displace less wood as the pilot drill diameter is normally the same or just a thousandths or so less than the minor diameter of the screw.
The entire experiments were performed for three typical aspect ratios (AR=3, 6 and 10), where the aspect ratio AR can be defined as (AR= major diameter of the nozzle / minor diameter of the nozzle = a / b).
When using a roll tap you may also experience a challenge obtaining the correct size tolerance for both the thread class and the post-tap minor diameter size.
In one of them major diameter was aligned in load direction (elliptical cutout 1) and in the other one minor diameter was aligned in this direction (elliptical cutout 2).
The military has for years used the barrel's minor diameter before rifling to identify the cartridge's caliber and then the length of the case, while most commercial makers name cartridges after the barrel's groove diameter--but not always.
The three nogs are arranged on the rotor minor diameter to allow a big space between the two rotors in order to enhance material injection into the mixer.
For an internal thread, the minor diameter represents the largest drilled hole allowable inside the part.