Bearing

The bushings are located inside the holes of the various structural parts where a pin will pass and be inserted. They serve as a sliding and lubricating element so as not to wear out the mechanical component of the tail lift or the pin itself during all sliding movements due to use. The bushings can be made of smooth or perforated bronze, in some cases honeycomb and with Teflon inside, self-lubricating or not. In short, there are really multiple types and sizes depending on how maintenance by the manufacturer is also conceived. Lately we also see them in technopolymer. Some, as written above, are self-lubricating, i.e. during use they release substances that avoid having to worry about greasing the moving parts. In other cases, in fact, the pins are equipped with special holes inside them and a grease nipple from which, through a pump designed for this use, it is possible to get the grease between the pin, the bushing and the structure. Obviously, bushings are not eternal and proper maintenance requires them to be changed to avoid damage to the pins or other moving parts.