Patent ID: 6536953
Filing Date: 2003-03-25
Classification: B65H,F16C

Abstract:
A mounting system for a rotary bearing having an inner raceway and an outer raceway, each having a mounting surface, used to support a rotating roll on a stationary support member, comprises:an annular groove adjacent the mounting surface of a raceway on the bearing, the raceway having shoulders on each end of said surface and the groove having a bottom with ends that are substantially aligned with the shoulders of the raceway and a land defining the top of the groove, with the land radially spaced from the raceway by a predetermined radial gap; a substantially enclosed cross-sectional area when the raceway mounting surface is concentric with the groove, the enclosed area defined by the groove bottom on one side, said raceway surface on an opposed side, and the groove ends, with the extension of the groove ends intersecting the raceway surface or an extension thereof at said gap, on the end sides; a singular annular member comprising an elastomer, the singular member mounted in the groove and contacting the bottom of the groove and the surface of the raceway, the singular member having a cross-sectional area that is contained within said enclosed cross-sectional area; and an open area within said enclosed cross-sectional area that is free of singular member elastomer, the open area being 15% to 100% of a gap area comprising the product of the distance between the groove ends and the gap, so that when there is relative movement to reduce the distance between the surface of the raceway and the groove land which deflects the singular member elastomer and reduces the enclosed area, the open area is reduced or eliminated and the singular member elastomer viscoelastically deforms so that the mounting system provides a first rate of stiffness during the initial movement and a second rate of stiffness as the movement continues and before the radial deflection exceeds the radial gap, the second stiffness greater than the first stiffness.