loose pin
英 [luːs pɪn]
美 [luːs pɪn]
导向（定心）销；活动（插入式）定位销
双语例句
- When removing the backrest, the bearing sleeve may come loose and catch on the pin.
拆卸靠背时，轴承套筒可能会松动以致挂在销上。 - Stainless steel square hinge loose pin with ball bearing
不锈钢抽心轴承方铰链 - The band drawing mechanism is composed of a band clamping slide block and a band drawing feed screw connected with a loose pin at one end of the slide block.
抽带机构由一个夹带滑块和与滑块一端活销接的抽带丝杠组成。