Linde Polymer Tec Co.,Ltd. is one of the most experienced manufacturers and suppliers of connecting rod seals in China, also supports customized service. Please feel free to buy high quality connecting rod seals for sale here from our factory.
Connecting Rod Seals
| Density | 1.5g/㎝3 |
| speed | ≤1m/s |
| Temperature | -40°C～+200°C |
| Accreditation | ISO 9001;IATF 16949;SAE J2643;ASTM D2000 |
Introduction
Connecting rod seals for hydraulic cylinders and actuators seal system pressure from the outside atmosphere.
The function of the rod seal is self-evidently important, since external leakage may contaminate the surrounding environment.
There are single-acting seals and double-acting rod seals, but it is ideal to use it as a single-acting seal.
Connecting rod seals method
1
metal seal
Metal sealing uses techniques such as press-in and extrusion to fill the gap between the metal component and the box body, thereby forming a sealing protective layer similar to a paint film to protect the seal.
2
O-ring seal
O-ring sealing refers to using an O-ring sealing ring between the rod and the box to achieve static sealing. The elastic deformation of the O-ring sealing ring makes the sealing effect better.
3
Spring seal
Spring sealing refers to the use of springs to seal between the connecting rod and the box. The advantages of this method are good sealing performance, simple structure, and long service life.
4
Diaphragm seal
Diaphragm sealing is to installation of a diaphragm inside the box and combining it with the connecting rod to achieve a dynamic sealing effect through the elastic deformation of the diaphragm.
In general, there are many ways of connecting rod seals, and the choice of sealing method depends on the specific usage of the machine and equipment.
Mainly used for rod seals in hydraulic and pneumatic applications.
The materials used are HNBR, and the carrier materials are plastic, steel, and aluminum.
Connecting rod seals is a cost-effective solution that is simple and easy to assemble.
| HNBR 70 | Property | Unit | Test Method | Test Parameter | Value |
| Hardness | IRHD | ASTM D 1415 | 70 | ||
| Tensile strength | MPa | ASTM D 412 | 23 | ||
| Ultimate elongation | % | ASTM D 412 | 229 | ||
| Specific gravity | g/cm3 | ASTM D 297 | 1.22 | ||
| Compression set | % | ASTM D 395 B | 22h / 150°C | 15.9 | |
| Low temp. resistance | °C | ASTM D 1329 | TR10 | -21.8 |
What Is Connecting Rod
A connecting rod is an engine component that transfers motion from the piston to the crankshaft and functions as a lever arm. Connecting rods are commonly made from cast aluminum alloy and are designed to withstand dynamic stresses from combustion and piston movement.
The connecting rod connects a piston to the crankshaft. The rods are made from drop-forged, heat-treated steel to provide the required strength. Each end of the rod is bored, with the smaller top bore connecting to the piston pin (wrist pin) in the piston. The large bore end of the rod is split in half and bolted to allow the rod to be attached to the crankshaft. Some diesel engine connecting rods are drilled down the center to allow lubrication oil to travel up from the crankshaft and into the piston pin and piston.
Certification
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