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arc of contact

   Also found in: Medical 0.01 sec.
arc of contact [¦ärk əv ′kän‚takt]
(mechanical engineering)
The angular distance over which a gear tooth travels while it is in contact with its mating tooth. Also known as arc of action.
The angular distance a pulley travels while in contact with a belt or rope.
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Without Items 2 and 4, the belt pull itself cannot be accurately determined, because those items fix the arc of contact and therefore the friction force between belts and driving pulley.
How is V-belt pull determined? by Richard L P E Nailen / Electrical Apparatus
This features changes the wheel arc of contact and produces a better metallurgical finish.
Abrasive saw by Tooling & Production
 
 
 
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