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For a key to function, the shaft and rotating machine element must have a keyway and a keyseat, which is a slot and pocket in which the key fits. The whole system is called a keyed joint . [ 1 ] [ 2 ] A keyed joint may allow relative axial movement between the parts.
Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.
One problem with roller chains is the variation in speed, or surging, caused by the acceleration and deceleration of the chain as it goes around the sprocket link by link. It starts as soon as the pitch line of the chain contacts the first tooth of the sprocket. This contact occurs at a point below the pitch circle of the sprocket.
Broaching is a machining process that uses a toothed tool, called a broach, to remove material.There are two main types of broaching: linear and rotary.In linear broaching, which is the more common process, the broach is run linearly against a surface of the workpiece to produce the cut.
In the adjacent diagram, (a) and (b) are referred to as having an offset below center, while those in (c) and (d) have an offset above center. In determining the direction of offset, it is customary to look at the gear with the pinion at the right. For below center offset the pinion has a left hand spiral, and for above center offset the pinion ...
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A six-pin interchangeable core with an 'A' keyway and individual chamber capping in an ANSI/BHMA 626 satin chrome finish. An interchangeable core or IC is an adaptable locking key cylinder, which can be rapidly exchanged in the field via the use of specialized "control keys".
A note that is called out in specific spots in the field of the drawing. It is numbered with a stylized flag symbol surrounding the number. A general note applies generally and is not called out with flags. FL Floor Level Floor Level of an existing or proposed building or concrete pad FN or F/N: flag note, flagnote; find number: 1.