Product category:
Springs, dampers, latches, locks and small components
News Release from: Rencol Tolerance Rings | Subject: Tolerance rings
Edited by the Engineeringtalk Editorial
Team on 19 February 2003
Tolerance rings simplify mounts for
large bearings
Mounting large diameter bearings can pose particular challenges.
Mounting large diameter bearings can pose particular challenges associated with the need for higher assembly pressures, the proportionately greater amount of thermal expansion encountered and the potential for significant out of balance forces arising during operation These problems can readily be overcome by opting for the use of tolerance rings as an integral part of the bearing mount
This article was originally published on Engineeringtalk on 25 Jul 2008 at 8.00am (UK)
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Explains Roger Cornwell of market leader Rencol Tolerance Rings: "Whilst more frequently used for smaller, high volume bearing applications, these rings are equally cost-effective at diameters up to, and beyond, 400mm".
Each ring has waveforms around its circumference which locate against the annular surfaces to be joined, creating a robust interference fit.
Using a tolerance ring obviates the need for circlips, glues and other fixing devices and allows component machining tolerances to be greatly increased.
In use, the rings accommodate differential thermal expansion and can be designed to allow for an amount of misalignment during the assembly process.
The key to their performance in such circumstances is to be found in ring design, and especially in the choice of spring stiffness and the degree of tolerance ring compression.
Although potentially more costly in terms of purchase price than some other methods used for mounting large diameter bearings, significant cost savings arise because of the simplicity of the assembly process, and associated savings in machining time.
Tolerance rings also have the benefit of providing an engineered solution, with batch traceability of a type not available, for example, when using adhesive fixings. Request a free brochure from Rencol Tolerance Rings ...
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