A dual-bearing reel having a level winding mechanism includes a first main body that rotatably supports one end of a spool and rotates the spool, a second main body including a gear that rotates in conjunction with rotation of the spool, a worm shaft that has the gear attached thereto and rotates together with the gear, a level wind pipe through which the worm shaft passes, and a level winder. The level wind pipe has an outer diameter smaller than an outer diameter of the gear. The second main body includes a gear housing portion for housing the gear. The gear housing portion has an opening that is larger than the gear to allow the level wind pipe to enter the opening. The dual-bearing reel also has a gap filling portion that fills a gap between the level wind pipe and an inner wall surface of the opening.[課題] 提供一種雙軸承捲線器，是對於將水平捲繞機與捲筒的旋轉連動地移動的型式的雙軸承捲線器，可以將設於蝸軸的一端部的齒輪從第1本體部出入，且，也可以確保該齒輪的收容部的密閉性。 [技術內容] 具有均勻捲線機構的雙軸承捲線器，是具備：第1本體部(110)、及第2本體部(120)、及蝸軸(151)、及均勻捲線硬管(152)、及水平捲繞機(153)。第2本體部(120)，是具備收容蝸軸齒輪(124)的第2收容部(125B)。第2收容部(125B)，是具備可讓均勻捲線硬管(152)進入的比蝸軸齒輪(124)更大的第1開口部(125BA)。雙軸承捲線器，是進一步具備將均勻捲線硬管(152)及第1開口部(125BA)的內壁面之間的間隙埋沒的間隙埋沒部(154)。
