A ring-traveler device with no liquid lubrication of a ring type spinning machine includes a ring 11 and a traveler 12 that is slidable along the ring. The ring-traveler device has a plurality of first recesses 15 and a plurality of second recesses 16 formed in at least one of sliding surfaces of the ring and the traveler. Each first recess has a width between 10 and 100 µm and is formed by an opening edge 15A and an inner surface 15B, Each second recess 16 has a width smaller than each first recess 15. At least one of the second recesses extends across at least one of the opening edges and the inner surfaces of the first recesses.