Abrasive assembly having alignment elements
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United States of America Patent
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Mar 13, 2018
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app pub date -
Dec 9, 2014
filing date -
Dec 9, 2013
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Abstract
An abrasive assembly including a back-up pad having a central axis, an engagement component, and an alignment element; and an abrasive disc having a central axis, the abrasive disc engaged with the back-up pad, the abrasive disc including an alignment element; wherein the alignment element of the back-up pad aligns with the alignment element of the abrasive disc, wherein the engagement component of the back-up pad engages with the abrasive disc, and wherein the back-up pad and the abrasive disc have a concentricity tolerance, C, as measured between the central axis of the back-up pad and the central axis of the abrasive disc, of no greater than about 0.1.
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