| 摘要 |
PURPOSE:To eliminate the necessity of running-in at low speeds and stabilize a running attitude in operating at high speeds, by forming a recessed part in a compatible shape formed in using a traveler in a part corresponding to a sliding surface of the traveler with a ring. CONSTITUTION:A recessed part 3 formed in using a traveler is formed in a sliding surface of a traveler 1 with a ring 2. An abrasion-resistant layer by nitriding treatment, etc., is preferably formed in the recessed part 3 in a compatible shape and parts close thereto. |
