01 December 2009
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Flexible couplings available on the Internet

A series of metric Neo-Flex couplings from Advanced Antivibration Components (AAC) feature excellent torsional vibration isolation plus shaft-to-shaft insulation.

The centres of these couplings are made from 73 durometer moulded neoprene along with 303 stainless steel hubs. They are featured at the AAC eStore (click on enquiry button) where you can order online, request a quote, download CAD models, check stock plus view catalogue and technical pages.

They are stocked in two hub styles – conventional pin type hubs which use a set screw for fastening and a Fairloc version, which is a patented integral hub fastener that eliminates marred shafts. The choice of Fairloc hubs permits frequent phase adjustment, timing and position adjustment while adding positive metal-to-metal fastening strength along both hub sections.

The integral hub fastener consists of two slots that are machined into the hub, one radially the other angularly, to create a transverse wedge which remains attached to the solid portion of the hub on one side. The resultant cantilevered clamping section has a tapped hole to accept a cap screw which passes through a clearance hole in the solid portion of the hub, and into a threaded hole in the transverse wedge section. As the screw is tightened, the cantilevered section clamps the shaft securely. The screw can be tightened and released repeatedly without marring the shaft or affecting its torque-transmitting abilities.

Author
Paul Gay

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