Product category:
Gears, brakes, couplings and engines
News Release from: Stock Drive Products/Sterling Instrument | Subject: S25FB9 and S25FY9 303 shaft collars
Edited by the Engineeringtalk Editorial
Team on 11 October 2007
Shaft collars incorporate hub fastener
Fairloc hubs permit frequent phase adjustment, timing and position adjustment while adding positive metal-to-metal fastening strength along both hub sections.
Sterling Instrument has released shaft collars that have a built-in bearing shim spacer and feature the Fairloc integral hub fastener The S25FB9 brass collar and S25FY9 303 stainless steel collar are available in both inch and metric sizes
This article was originally published on Engineeringtalk on 10 Jul 2002 at 8.00am (UK)
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They are designed to fit shafts that are 3 to 20mm in diameter.
Their outside diameters range from 11 to 38mm.
Fairloc is an integral hub fastener which eliminates marred shafts.
The hubs permit frequent phase adjustment, timing and position adjustment while adding positive metal-to-metal fastening strength along both hub sections.
The Fairloc 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.
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