Round-Head Edge-Cut Pin Shaft With Holes

Product introduction

The round head trimmed edge pin with hole is an exquisitely designed standard connecting piece, which is widely used in the hinged parts of construction machinery, agricultural equipment, heavy trucks and other fields. The core design is that one end is a round head, which facilitates installation and prevents the whole body from falling off; one side of the shaft adopts a trimming (flattening) process to ensure that it can effectively prevent rotation and withstand torque in the installation hole; the transverse through hole at the other end is specially designed for installing cotter pins or circlips, achieving bidirectional reliable locking, effectively preventing the pin from accidentally popping out under vibration conditions.

 

This product is made of high-quality carbon steel or alloy steel. After quenching and tempering heat treatment, it has high strength, high toughness and excellent wear resistance. This dual protection design of "anti-rotation + anti-off" greatly improves the stability and safety of the transmission mechanism and effectively extends the service life of the equipment.

 

Product features

1. Double locking, safe and reliable

One end is a round head to achieve one-way limit; the transverse through hole at the other end can be installed with a cotter pin or a circlip to achieve two-way mechanical locking. This double protection structure can effectively prevent the pin from accidentally falling off during strong vibration, greatly improving the safety and reliability of the equipment.

 

2. Unique anti-rotation, stable torsion bearing

The cut edge (milled flat) design on the side of the shaft is its core feature. It perfectly fits the mounting hole, completely eliminates the rotation of the pin itself, ensures precise positioning, reliably transmits shear force and torque, and protects the mating hole from wear.

 

3. Sturdy and durable, long service life

Made of high-quality carbon steel or alloy steel and subjected to quenching and tempering heat treatment, the product as a whole has high strength, high toughness and excellent wear resistance, especially suitable for harsh working environments with heavy loads and high impact.

 

4. Easy to install and simple to maintain

The round head guide facilitates quick insertion, and the cotter pin locking method is simple and intuitive without the need for special tools, making installation and subsequent disassembly and maintenance extremely convenient, effectively saving man-hours.

 

Product application

1: Engineering machinery: suitable for connecting rods, rockers and other parts of excavators and loaders to achieve flexible rotation and reliable positioning between components and withstand high-intensity operating loads.

2: Agricultural machinery: used for suspension systems and transmission mechanisms of tractors and harvesters to adapt to complex working conditions in the field and ensure continuous and stable operation of machinery.

3: Automobile manufacturing: used in suspension components and steering system connecting rods of automobile chassis to accurately transmit power and maintain component position accuracy, improving driving safety.

4: General machinery: used as a hinge point connector in conveyors, compressors, printing machinery and other equipment to achieve controllable swing and fixation between components, adapting to a variety of transmission needs.

5: Rail transportation: used in key parts such as the braking system and door mechanism of rail vehicles to meet the durability requirements in high-frequency start-stop and vibration environments.

 

FAQ

Q: How to choose suitable materials?

A: No. 45 carbon steel can be selected for normal loads, which is low-cost and easy to process; SUS304/316 stainless steel can be selected for humid or corrosive environments; for heavy-load scenarios such as excavators, 40Cr alloy steel is preferred, which can withstand high-strength loads after quenching and tempering.

 

Q: What details should be paid attention to during installation?

A: Clean the impurities in the mating holes before installation to avoid affecting the assembly accuracy; use it with cotter pins, circlips and other anti-loosening parts; use a rubber hammer to tap the installation lightly, and do not tap hard to cause the round head to deform. It is recommended to use pneumatic pressing equipment in heavy-load scenarios.

 

Q: What are the functions of its trimmed edges and perforated designs?

A: The trimmed design facilitates quick positioning during installation and prevents the pin from rotating in the hole; the hole design allows the insertion of anti-loosening parts such as cotter pins to prevent the pin from falling off in a vibration environment, and grease can also be injected through the hole to extend the service life.

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