A method for manufacturing a torque-transmitting assembly includes turning an inner component and machining an outermost surface of the inner component such that the outermost surface of the inner component has a continuous convex shape. The method further includes turning an external component and machining an innermost surface of the external component such that the innermost surface of the external component has a continuous convex shape. The method also includes heating the innermost surface of the external component to expand a size of the innermost surface after machining the innermost surface of the external component and placing the heated external component onto the inner component while the inner component is maintained at room temperature.