| 摘要 |
The invention relates to a ball bearing having a first and a second race and at least one row of balls arranged in the gap between both races, said balls having a radius RK and rolling along on tracks, which are facing each other, of both races, wherein the centres of the balls of a row move on a circular path which is surrounded by a torus encompassing all balls of said row and having the toroidal radius RK, the toroidal angular coordinate f and a poloidal angular coordinate ?, and wherein each track has with each ball two nearly punctiform contact areas or contact points P1, P2; P3, P4 under the respective angle of support ?P1, ?P2; ?P3 and ?P4, and wherein the cross-section of the track in the area of the contact points P1... P4 has in each case a finite radius of the transversely convex arch RL1... RL4, with RLv > RK, and wherein the radius of the transversely convex arch RL has in the surroundings of a contact point P1... P4 in each case a continuous differentiated function of the poloidal angular coordinate ?: RL = RL(?), which increases in each case starting from the respective contact point P1... P4 in both poloidal directions: RL(?) = RL(?Pv). |
