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Mark/B-LOC: Using keyless locking devices in place of keys, splines, and shrink cheap or press fits typically means savings in other areas of machine design, such as smaller shafts and bearings and simplified gas machining. PT components can be positioned anywhere along a shaft without regard to keyway placement or access for mounting or removal tools. Keyless locking devices require only torque wrench access for installation and adequate hub strength of mounted components.Carl/Ringfeder: The main reasons to use locking devices are to eliminate backlash in a connection, eliminate troublesome assembly or disassembly later on, and to have some adjustment to a connection during the lifetime of the component. Traditional shrink fit and press fit methods of attaching components to shafts don''t allow for easy adjustment or removal. Some connections will never be loosened; so attaching them with a locking device only makes sense when using it facilitates assembly. Employing keyless locking devices in the design means smaller shaft sizes scooters because the stress concentration factors of keyways is eliminated. Smaller shaft sizes, in turn, mean smaller bearings and other mating components can be employed.

The less invasive laser-assisted uvulopalatoplasty (LAUP) burns away excess tissue cheap and is performed under local anesthesia on an outpatient basis. Yet its long-term effectiveness has yet to be established, and the pain can still land you in a new grotto of hell."The incision or the laser burn has to heal while you constantly breathe, talk and swallow, so the wound is always being stretched, causing considerable pain," says John Shepard, M.D., medical director of the Mayo Clinic Sleep Disorders Center in Rochester, Minn. "One patient said that if he''d had a gun he would have shot himself, the pain was so bad." To be fair, others experience less discomfort--the equivalent of a bad sore throat for three or four days.