Patent ID: 6132097
Filing Date: 2000-10-17
Classification: F16C

Abstract:
Roller bearing comprising an outer and an inner race ring having confronting outer and inner race tracks respectively with lands situated axially outside said outer and inner race tracks and a number of rollers provided between and in contact with said outer and inner race tracks, the rollers and outer and inner race tracks having longitudinal section profiles with a radius of curvature, which is bigger than a distance between the outer race track and an axis of the bearing, measured perpendicularly to the outer race track, the rollers being axially movable along the outer and inner race tracks without being hindred by axial confinements at the outer and inner race tracks for the purpose of permitting relative misalignment and axial displaceability for the outer and inner race tracks, at least portions of areas in the inner and outer race rings, in non-displaced position situated axially outside a zone, which is subjected to bearing load, having a surface finish and/or profile that contributes in giving the rollers a positive skew angle, and which is achieved by either that these areas are surfaces having reduced friction in form of smooth surfaces, that these surfaces have modified profile portions which reduce contact pressure between these areas and the rollers at conditions of mutual displacement between the race rings in the axial direction, and that said areas have at least one recessed portion.