A level winding mechanism for a dual-bearing reel includes a worm shaft, a guide member and a slide member. The guide member has a tubular shape and is disposed radially outside of the worm shaft. The slide member has a first through hole and an accommodation recess. The first through hole enables the guide member to penetrate therethrough. The accommodation recess is formed on the inner surface of the first through hole. The slide member is configured to slide along the guide member.沿著導引構件將滑動構件平順地往復移動。雙軸承捲線器(100)的均勻捲線機構(50),是具備:蝸桿軸(5)、及導引構件(6)、及滑動構件(7)。導引構件(6),是筒狀,被配置於蝸桿軸(5)的外周側。滑動構件(7),是具有第1貫通孔(72)、及收容凹部(74)。導引構件(6)貫通第1貫通孔(72)。收容凹部(74),是形成於第1貫通孔(72)的內側面。滑動構件(7),是沿著導引構件(6)滑動。5‧‧‧蝸桿軸6‧‧‧導引構件7‧‧‧滑動構件8‧‧‧卡合構件9‧‧‧蓋構件50‧‧‧均勻捲線機構61‧‧‧導引構件本體62‧‧‧開口部72‧‧‧第1貫通孔73‧‧‧第2貫通孔74‧‧‧收容凹部81‧‧‧軸部82‧‧‧卡合爪部91‧‧‧蓋本體部92‧‧‧保持部721‧‧‧左端部722‧‧‧右端部731‧‧‧母螺紋部921‧‧‧公螺紋部
