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In the United States, typically, the face bore is sized from 1.5 to 2.125 inches (3.81 to 5.40 cm) in diameter and is centered at 2.375 or 2.75 inches (6.03 or 6.99 cm) from the leading edge of the door. This distance is referred to as the "backset." [3] Other, less popular, backsets are at 3.75 and 5 inches (9.5 and 12.7 cm). Residential doors ...
A lock ring is a threaded washer used to prevent components from becoming loose during rotation. [1] They are found on an adjustable bottom bracket and a track hub of a bicycle . Lokring is another form of fastener used in the automotive and air condition industries: these fittings are often confused with lockrings.
The lock plate was smaller, flat, and had a steeped-down tail, a raised semi-waterproof pan, a flat ring neck cock, and a sliding safety bolt. With the introduction of a new pattern Short Land Pattern Flintlock Musket ('Brown Bess') in 1810, with its flat lock and ring-necked cock, the Baker's lock followed suit for what became the fourth pattern.
A retaining ring is a fastener that holds components or assemblies onto a shaft or in a housing/bore when installed - typically in a groove - for one time use only. Once installed, the exposed portion acts as a shoulder which retains the specific component or assembly.
A security locknut [1] is a type of industrial fastener composed of two steel threaded parts: a nut body and an elliptical spring steel lock ring. Security locknuts are fastened onto a mating bolt to form a bolted joint. Forces of friction (with elastic deformation), a stretching of the bolt, and compression hold the bolted joint firmly together.
The circular segment can be cut directly by plunge cutting with a circular Woodruff cutter without any reliefs. The main advantage of the Woodruff key is the elimination of milling near shaft shoulders, where stress concentrations, [4] and concentricity would be affected. [3] The latter is particularly important for high speed operation.
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