What is the allowable specific pressure of the bushing?

The ring sleeve bears pressure. Bushing is an accessory for mechanical parts to achieve sealing and wear protection. The allowable specific pressure of bushing refers to the ring sleeve that can shorten the axial length of connecting rod small head under the condition of a certain piston pin diameter, and the ring sleeve can bear the pressure, thus increasing the bearing area of piston pin seat, making the mechanical load distribution reasonable and playing the role of gasket. The common material of connecting rod small end bushing is tin bronze, because the allowable specific pressure of tin bronze is higher than other bearing alloys.