n.鼓；圓繃；繃圈
v.在繃圈上繡；用繃圈繡
Thrust self aligning roller bearing is one type of thrust bearing with tambour roller aslant ranged. 推力調心滾子軸承，是鼓形滾子傾斜排列著的推力軸承。
n.小手鼓；鈴鼓
