a fitting , in particular for a motor vehicle seat , includes a first fitting part , on which a ring gear is formed , a second fitting part , on which a gear is formed , which meshes with the ring gear , whereby the two fitting parts are in a transmission connection with each other , and a rotatably mounted , revolving eccentric for driving a relative rolling motion of the gear and the ring gear . the eccentric is driven by a carrier , wherein during said rolling motion , a tooth flank of a tooth of the gear contacts a tooth flank of a tooth of the ring gear at a pitch point . the radius of curvature of the tooth flank of the tooth of the gear at the pitch point and the radius of curvature of the tooth flank of the tooth ; of the ring gear at the pitch point are at least approximately equal .