In some cases the small end of the rod is clamped to the pin or has a bushing in it to allow the pin and rod oscillation.

在一些情况下，连杆小端夹定在活塞销上或在连杆里有一套管，这样可以使得活塞销与连杆能够共同摆动。

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Our main products include chain track, track roller, carrier wheel, guiding wheel, driving wheel, track shoe screw, shaft sleeve, pin, bushing, and link rod, recoil spring etc.

我们公司专业生产挖掘机链轨、链条及支重轮、托链轮、引导轮、驱动齿、履带板螺栓、链销、链通、斗轴、斗轴套、千秋架、弹簧座等系列产品。

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