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A driveshaft coupling. Note the split damage beginning to appear, likely due to the large axial displacement. A giubo. A giubo (/ ˈ dʒ uː b oʊ / JOO-boh; etymology: giunto Boschi, "Boschi joint"), also known as a 'flexdisc', and sometimes misspelled as guibo, is a flexible coupling used to transmit rotational torque between the drive shaft and the companion flange on mechanical devices ...
Jaw couplings are composed of three parts: two metallic hubs and an elastomer insert called an element, but commonly referred to as a "spider". The three parts press fit together with a jaw from each hub fitted alternately with the lobes of the spider. Jaw coupling torque is transmitted through the elastomer lobes in compression.
A beam coupling, also known as helical coupling, is a flexible coupling for transmitting torque between two shafts while allowing for angular misalignment, parallel offset and even axial motion, of one shaft relative to the other. This design utilizes a single piece of material and becomes flexible by removal of material along a spiral path ...
In some cases, the flexible arms are also useful when carrying out work in inaccessible places. Magnets or grippers at the end of the gooseneck can be used to "fish out" small parts from inaccessible places, a mirror or lighting allows views into hidden corners. A gooseneck on a stick lighter allows convenient lighting in hard-to-reach positions.
An over-torque condition pushes the balls out of their detents, thereby decoupling the shaft. It can have single or multiple detent positions, or a snap acting spring which requires a manual reset. There may be a compression adjustment to adjust the torque limit. Many cordless drills incorporate this type of torque limiter in a planetary ...
A disc coupling is a high performance motion control coupling designed to be the torque transmitting element (by connecting two shafts together) while accommodating for shaft misalignment. It is designed to be flexible, while remaining torsionally strong under high torque loads. Typically, disc couplings can handle speeds up to 10,000 r/min.
The impulse coupling uses a spring, a hub cam with flyweights, and a shell. [5] The hub of the magneto rotates while the drive shaft is held stationary, and the spring tension builds up. When the magneto is supposed to fire, the flyweights are released by the action of the body contacting the trigger ramp.
However, flexures require no lubrication and exhibit very low or no friction. [1] Many flexure bearings are made of a single part: two rigid structures joined by a thin "hinge" area. A hinged door can be created by implementing a flexible element between a door and the door frame, such that the flexible element bends allowing the door to pivot ...
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