arc of contact

Also found in: Medical.

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.

Mentioned in ?

arc of action
arc of approach
arc of recess
Magnetic Field Extinction
wet-reed relay

References in periodicals archive ?

This features changes the wheel arc of contact and produces a better metallurgical finish.

Abrasive saw

If the arc of contact is less than 180 degrees, the V-belts will need to operate at a higher tension in order to transmit the required HP without slipping.

V-belt selection tips that pay off

Designers also use idlers to enable a V-belt drive to turn a comer or to clear obstructions, or to increase the arc of contact on a sheave.