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This file is a work of an employee of the Executive Office of the President of the United States, taken or made as part of that person's official duties. As a work of the U.S. federal government , it is in the public domain .
An alternative coupling device to the traditional parallel key, the tapered lock removes the possibility of play due to worn keyways. [ 8 ] [ 9 ] [ 10 ] It is more robust than using a key because maintenance only requires one tool and the self-centering balanced rotation means it lasts longer than a keyed joint would, but the downside is that ...
This file is a work of an employee of the Executive Office of the President of the United States, taken or made as part of that person's official duties. As a work of the U.S. federal government , it is in the public domain .
The tapered key is tapered only on the side that engages the hub. The keyway in the hub has a taper that matches that of the tapered key. Some taper keys have a gib, or tab, for easy removal during disassembly. The purpose of the taper is to secure the key itself, as well as to firmly engage the shaft to the hub without the need for a set screw.
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A form of taper pin that precedes these standards is the clock pin, used to accurately and repeatably register parts of a clock to one another. Clock pins do not have a standardised taper, but they generally have a more pronounced taper than the standard engineering pins. The size or gauge is defined by diameter at each end, and the length.
The chuck may be held against the taper with a threaded retainer ring (large thin nut), typically wrenched with a spanner wrench of the pin or hook variety. The peak of popularity for building this type of spindle nose was the 1940s and 1950s. The chuck may be held against the taper with cam-lock posts that wedge into a stuck-fast position.
english: president bush meets with british foreign secretary douglas hurd. u.s. participants include: vp quayle, sec. james baker, sec. dick cheney, gen. scowcroft ...