Abstract: Abrasive articles including a non-woven web of staple fibers that form a single layer that is free of any additional layers of non-woven webs of staple fibers. The abrasive articles contain abrasive particles bound to the non-woven web. The abrasive articles can be compressed abrasive articles that include a non-woven web of staple fibers, including blends of staple fibers having a first portion of fibers having a first linear density and a second portion of fibers having a second linear density.

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.

Abstract: An abrasive article including a disc including a central axis; a primary outer edge substantially coaxial with the central axis and having a circumferential length, L1; a secondary outer edge substantially coaxial with the central axis and coplanar with the primary outer edge, the secondary outer edge having a circumferential length, L2, wherein L2 is less than L1; and a structurally weakened portion extending substantially adjacent to the secondary outer edge. In an embodiment, the abrasive article further includes a shedable portion configured to rupture the structurally weakened portion when the shedable portion is removed from the abrasive disc. In another aspect, an abrasive article having an initial outer circumferential length, LI, and a length of deliberately exposable circumferential edge surface, LOE, wherein LOE is greater than LI.

Abstract: An abrasive article including a disc including a central axis; a primary outer edge substantially coaxial with the central axis and having a circumferential length, L1; a secondary outer edge substantially coaxial with the central axis and coplanar with the primary outer edge, the secondary outer edge having a circumferential length, L2, wherein L2 is less than L1; and a structurally weakened portion extending substantially adjacent to the secondary outer edge. In an embodiment, the abrasive article further includes a shedable portion configured to rupture the structurally weakened portion when the shedable portion is removed from the abrasive disc. In another aspect, an abrasive article having an initial outer circumferential length, LI, and a length of deliberately exposable circumferential edge surface, LOE, wherein LOE is greater than LI.

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.

Abstract: Abrasive articles including a non-woven web of staple fibers that form a single layer that is free of any additional layers of non-woven webs of staple fibers. The abrasive articles contain abrasive particles bound to the non-woven web. The abrasive articles can be compressed abrasive articles that include a non-woven web of staple fibers, including blends of staple fibers having a first portion of fibers having a first linear density and a second portion of fibers having a second linear density.