High-Quality Qsb4.5 Engine Factory – Cummins Engine Part Piston Pin 4095504 For Cummins QSK23 Engine – Raptors

Product Parameter

The piston pin is a cylindrical pin mounted on the piston skirt. Its middle part passes through the small head hole of the connecting rod and is used to connect the piston and the connecting rod. Its function is to transmit the gas force that the piston bears to the connecting rod, or to make the small head of the connecting rod drive the piston to move together. In order to reduce weight, piston pins are generally made of high-quality alloy steel and made hollow.

Function and working conditions of piston pin

The piston pin is used to connect the piston and the connecting rod, and transfer the force of the piston to the connecting rod or vice versa.

The piston pin bears a great periodic impact load under high temperature conditions, and because the piston pin swings at a small angle in the pin hole, it is difficult to form a lubricating oil film, so the lubrication conditions are poor. For this reason, the piston pin must have sufficient rigidity, strength and wear resistance. The quality is as small as possible, and the pin and the pin hole should have a proper fit clearance and good surface quality. Under normal circumstances, the stiffness of the piston pin is particularly important. If the piston pin is bent and deformed, the piston pin seat may be damaged.

In short, the working conditions of the piston pin are that the bearing pressure ratio is large, the oil film cannot be formed, and the deformation is not coordinated. Therefore, its design requires sufficiently high mechanical strength and wear resistance, as well as high fatigue strength.

Porduct application

Cummins engines are mainly used in commercial vehicles, construction machinery, mining equipment, marine power and generator sets, etc.

Product Pictures