In mechanical engineering, a helix angle is the angle between any helix and an axial line on its right, circular cylinder or cone. Common applications...

of the angle indicating direction from the axis. A curve is called a general helix or cylindrical helix if its tangent makes a constant angle with a fixed...

cylinder. Base helix angle is the helix angle on the base cylinder of involute helical teeth or threads. Base lead angle is the lead angle on the base cylinder...

the helix angle of one having the negative of the helix angle of the other; such a pair might also be referred to as having a right-handed helix and a...

number of "starts". Lead angle is the angle between the helix and a plane of rotation. It is the complement of the helix angle, and is used for convenience...

can take plunging cuts); and categorization by number of flutes; by helix angle; by material; and by coating material. Each category may be further divided...

propeller is influenced by the angle of attack (α). This is defined as α = Φ - θ, where θ is the helix angle (the angle between the resultant relative...

bearing's geometry, ignoring the shape of the section's profile and the helix angle. In particular, the first principal curvature is calculated as κ 1 s...

one variant of form-milling, the single-form cutter is tilted to the helix angle of the thread and then fed radially into the blank. The blank is then...

an angle allows the tooth to enter the material gradually, reducing vibration. Typically, finishing cutters have a higher rake angle (tighter helix) to...

spiral angle in a spiral bevel gear is the angle between the tooth trace and an element of the pitch cone, and corresponds to the helix angle in helical...

An alpha helix (or α-helix) is a sequence of amino acids in a protein that are twisted into a coil (a helix). The alpha helix is the most common structural...

required in a gear train include errors in profile, pitch, tooth thickness, helix angle and center distance, and run-out. The greater the accuracy the smaller...

the behavior of a file. Helix angle – Helix angle is an angle between the cutting edge and the long access of a file. Helix angle plays an important role...

of the lobe. The lobe has a helical slot machined into it that has a helix angle of about 35° relative to the rotational axis of the camshaft. The width...

held at the lead angle of the hob, whereas if a helical gear is being produced, the held at the lead angle of the hob plus the helix angle of the helical...

polyproline II helix (PPII, poly-Pro II, κ-helix) is formed when sequential residues all adopt (φ,ψ) backbone dihedral angles of roughly (-75°, 150°) and have trans...

dihedral angles for an α-helix is roughly −105°, whereas that for a π-helix is roughly −125°.: 45  The general formula for the rotation angle Ω per residue...

principle that any two gears will mesh if they are of the same pitch, proper helix angle, and proper tooth depth and thickness. By using a gear-shaped corresponding...

A pi helix (or π-helix) is a type of secondary structure found in proteins. Discovered by crystallographer Barbara Low in 1952 and once thought to be...

freedom because the sliding and rotational motions are related by the helix angle of the thread. Higher pairs: Generally, a higher pair is a constraint...

In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA. The double helical...

screw thread is a ridge wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a...

viewing angle. The Helix Nebula has sometimes been referred to as the "Eye of God" in pop culture, as well as the "Eye of Sauron". The Helix Nebula is...

Harder materials require a larger point angle, and softer materials require a sharper angle. The correct point angle for the hardness of the material influences...

acute angle of ~25–50° that dictates the characteristic pattern of hydrophobicity in the sequences, while other DNA-binding structures like the helix-turn-helix...

needle stroke, the rotation angle of the stator (number of poles), the wire diameter and the slot channel width and the helix angle of the angularly slotted...

almost at right angles to each other connected by a short 'loop'. This loop is formed from a hydrophobic residue. The function of a helix corner is unknown...

The steering box contains an "hour glass" cam machined with a varying helix angle to provide the variable steering ratio. In common with other power steering...

with a pitch angle that increases with distance from its center, unlike the constant angles of logarithmic spirals or decreasing angles of Archimedean...