Pin Shaft With Hole On The Disk Head

Product introduction

The pan head pin with hole is a key mechanical connection. With its unique pan head and end radial pin hole design, it achieves reliable articulation and axial locking. Its pan head provides a large pressure-bearing surface, which can effectively withstand axial force and prevent the entire pin from passing through the hole. The through hole at the end is used to insert cotter pins, R-shaped pins or circlips, forming a strong mechanical anti-loosening barrier to ensure that the pin will not fall off under strong vibration, with excellent safety performance. Products are mostly made of high-quality carbon steel or alloy steel, and can be heat treated and surface treated to improve strength, hardness and corrosion resistance. It is widely used in swing connection parts that require high strength and high reliability, such as construction machinery, heavy equipment, automobile chassis, and industrial connecting rods. It is the core component to achieve safe articulation.

 

Product features

1. Reliable axial locking: The radial through hole at the end of the pin is the core design. By inserting cotter pins, R-shaped pins or circlips, a solid mechanical barrier can be formed to effectively prevent the pin from axial movement or falling off in the hole. Especially under vibration and impact conditions, the safety is far superior to pins without locking devices.

2. Strong axial load-bearing capacity: The integrated disc-shaped head design provides a much larger pressure-bearing area than the pin body. When the pin bearing is subjected to axial load, the pan head can fit closely on the surface of the connecting piece to evenly distribute the force and prevent the entire pin shaft from being pulled into or pushed out of the mounting hole, thus protecting the connecting parts.

3. Excellent structural strength and wear resistance: usually made of high-quality carbon steel (such as 45# steel) or alloy steel (such as 40Cr), and can be quenched and tempered to make the product have high strength and core toughness. The surface can also be quenched to improve the hardness and wear resistance of the hole wall and pin body, and extend the service life under frequent rotation or swing.

4. Easy to install and disassemble: The locking mechanism (such as cotter pin) is a standard part, and installation and disassembly can be easily completed using general-purpose hand tools (such as pliers). Maintenance is very convenient, without the need for professional equipment or complicated processes.

5. Wide applicability: A wide range of materials, heat treatment processes and surface treatment (such as galvanizing, blackening, phosphating) options enable the product to adapt to the needs of various harsh working conditions ranging from general industrial environments to high loads and high corrosiveness.

 

Product application

1. Construction machinery and heavy vehicles: Application scenarios: excavators, loaders, cranes, bulldozers, etc. Specific use: used to connect key working devices such as buckets, booms, and hydraulic cylinders. Its pan head and cotter pin design can withstand huge impact loads and continuous vibration, ensuring absolutely reliable connection under harsh working conditions and preventing the pin from falling off and causing serious accidents.

2. Agricultural machinery: application scenarios: tractors, harvesters, plows, etc. Specific uses: connecting suspension systems, flipping plow frames, harvesting knives, etc. It can adapt to the bumpy vibration and soil corrosion environment of farmland, ensuring the stability and safety of agricultural tools during operation.

3. Industrial equipment and automated production lines: Application scenarios: industrial robot joints, conveyor belt rollers, link mechanisms, mold guide pillars, etc. Specific use: As a central axis of rotation or a swing fulcrum to ensure precise alignment and reliable connection of moving parts, cotter pin locking prevents looseness caused by long-term reciprocating motion.

4. Automobiles and transportation equipment: Application scenarios: automobile chassis (such as steering links, suspension links), trailer connectors, and some parts of railway trucks. Specific use: Provide anti-vibration and anti-impact connections in these locations with extremely high safety requirements to ensure driving safety.

 

FAQ

Q: What is the “hole” at the end of this product used for?

A: The radial through hole at the end is a core safety design for axial locking. By inserting a split pin, R-shaped pin or circlip, a reliable mechanical stop can be formed to effectively prevent the pin from moving axially or completely falling off in the mounting hole, which is especially important under severe vibration conditions.

 

Q: What are the advantages of the pan head design?

A: The pan head design mainly provides two major advantages: Strong axial load-bearing: The pan head provides a larger pressure-bearing surface than the pin body, which can withstand the axial force from one side and prevent the pin from being pressed into or pulled through the connecting piece. Easy to install and position: During installation, the pan head can be used as a positioning reference, and it is easy to grasp manually or use tools to install by knocking.

 

Q: Should I choose cotter pins, R-pins or circlips for locking?

A: It depends on the application requirements: Cotter pin: The most reliable locking, strong load-bearing capacity, often used in heavy-duty, high-vibration equipment, but usually needs to be replaced after disassembly. R-type pin (elastic pin): It is very convenient to install and disassemble, can be reused, and is suitable for occasions requiring frequent maintenance, but its shear resistance is slightly weak. Circlip: Compact structure, suitable for scenarios where space is limited and axial fixation is required from both sides.

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