A study on the bearing contact of roller gear cams Original Research Article

This study presents contact ellipse characteristics of the roller gear cams consisting of cambered rollers and screw cam surfaces. Principal curvatures and directions of generated cam surfaces are studied. The dimensions and the directions of contact ellipses are also evaluated. The investigation results are most helpful to understand contact nature, and contact stresses of the roller gear cam, which may be considered as design indices for performance consideration.